You cannot modify the names of these CSS variables. Call me old fashioned, but I like to call my colours after the names of my colours. – Strong Don't forget to get daily.dev extension. Regarding variables, functions and mixins, we stick to something very CSS-y: lowercase hyphen-delimited, and above all meaningful. I also use this technique. We are using the sketch plugIn prism to generate color names. I see the benefits of other naming conventions, but with my general organizational system this works well. 1. It definitely depends on the project I’m working on. Here’s one project for that, and here’s another: See the Pen Color Namer by Maneesh (@maneeshc) on CodePen. – Strokes This is a great way to provide a snapshot of what’s in the … --c-primary-dark:#270036; The CSS variables used in templates are created by EasyVista. As the shift toward CSS custom properties happens, I think having a --c-orange and --c-gray-5 is similarly appropriate. But, if you're using a CSS trick that is less obvious, feel free to write comment. 1. Always use the same naming convention for all your code. That way I can set –primaryColor for an entire section or page or site but still have clearly named values associated with it, and it makes it easy to change the –primaryColor in an intuitive way. Basic Sass/SCSS Syntax & Conventions Tutorial. CSS variables have been a long-awaited feature of the web platform. Customers can create their own CSS variables in compliance with this naming convention. I’m using variables in this way. the warm color for a warning), sometimes you just want whatever the accent color is. I try to have a maximum of 5 color variants per color. The variable naming conventions in the above example imply the following to the reader. Poor John, he is unknown that he had broken the codebase . You should think about organizing your variable names (and project for that matter) modularly. – Fills CSS-Tricks is created by Chris and a team of swell people. CSS variables. I never have much trouble coming up with variable names for colors in my css, I use the same principle in every project. If there are set guidelines, I have to follow them, but if I’m playing around for myself, I’m using names that are descriptive for me and will remember 6 months from now. In this case my “private” colors that I only use within my variables file would be a one-to-one for a named color and a hex code, like. For more detail, please checkout cssnext features. It's also simple to locate the places where $yellow-greenis used by searching for it. I’ve been using it for years and I LOVE it. I do this too, but with the help of an app. A purple-10 will understandably be the lighter tone in comparison to a purple-50. Stuart Robson even gets a bit BEM-y with the names, including the namespace: Material Design uses values that are similar to font-weight! Every tim… I’ve largely stuck with that just-use-color-names approach today in Sass. --c-text-primary:#ffffff; To create a variable with global scope, declare it inside the :root selector. So, I define variables like –color-green, –color-red etc, and then alias them, like –color-accent: var(–color-red); etc. This is a pretty standard CSS naming convention. This approach prove itself to be very flexible and time saving on large projects. So I ended up with some sort of hierarchical namespace for the whole palette. I remember the very first time I tried Sass on a project. Variables are generally used for one property, like font-size, there are very few variables that are able to be used in different contexts. Using a scale from 10–100 with a tone at each ten is by far the simplest. Index the Contents of Your Stylesheets. When working with CSS preprocessors like Sass, Less (or any other programming language for that matter) you're going be leveraging the power of variables. This isn't right. It’s better for the to reflect it what it is than what it looks like. If people use the rel attribute, then it's perhaps okay to use data attributes in certain cases. C# naming conventions are an important part of C# coding standards and best practice when you are developing a .NET applications. Which is confusing. I have tried many different approaches to naming conventions and found that the following works fine. We are currently missing a naming convention for Less and somewhen future CSS variables (custom properties). Pretty much this. It's simpler, specifically in big projects with many CSS/LESS files to have single usage variables, even though that might result in a larger variables definition file. Sometimes you want a specific color (e.g. I struggled with naming color variables for years – since I discovered named+abstract colors I never looked back. CSS class names should use a standard naming convention (personally use kebab-case because it's used by most of the CSS framework classes) … The primary purpose of the naming convention is to give names meaning so that they are as informative as possible for the developer. He is handed over an HTML code that looks like this. However, as you write more CSS, you quickly see one big downside. – Generic: Generic colors, And finally I’ve introduced gradients for each category Thanks For Reading. Naming conventions ultimately come down to personal preference, but you have to imagine that someone at some point will be looking at your work so it needs to be “legible”. It’s easier to navigate, for me, and when i need to change a color slightly, i change the values. --c-primary:#66287f; For brand colors I use the folowing: $color-brand-1st, $color-brand-2nd, etc… When there are lighter and darker variants of color I just put -light or -dark. --c-aux:#d68b00; You could get a little more specific with those names with staying abstract, like Marcus Ortense says: And variations on each base like Mike Street says: Silvestar Bistrović recently wrote about using abstract Greek numbering: I’ve used that kind of thing for media query breakpoints before, as the numbering seems to make sense there (i.e. In my experience, this comes as a result of not taking the time to learn CSS. Teams have different approaches to writing CSS selectors. I name all my colors ( $eerie_black: #0d1321, $mesty_rose: #ffeddf, $flame: #d85922, etc.) Then I use those named colors to define my “public” variables, like: This way I could re-theme my whole app if need be (or to a lesser degree, re-color an element type) and not have to worry about either a color name not matching its hex, or having to change all my instances of $shamrock to $spruce throughout many files. I just want to know that this is the color used for accents. --c-text-secundary-light:#cccccc; Several years ago I designed enterprise color framework to be used for all our applications. And then I use CSS variables as a theming mechanic: https://github.com/clshortfuse/materialdesignweb, I use this website to name all my SCSS colour variables — http://chir.ag/projects/name-that-color/. After all, this isn’t crossing the HTML-CSS boundary here; this is all within CSS and developer-only-facing, which puts more of a narrow scope on the problem. , /* This is called BEM naming convention. Custom properties (sometimes referred to as CSS variables or cascading variables) are entities defined by CSS authors that contain specific values to be reused throughout a document. I just named a color variable $cornflower yesterday. The name of each variable complies with a naming convention that indicates its scope and graphic element clearly. It's time to agree on and implement a CSS/Less variable naming convention. This has nothing to do with name convention but will save your time too. As Phil Karton says, “there are only two hard things in Computer Science: cache invalidation and naming things.” So spending a whole chapter talking about naming is essential. Modifier names may consist of Latin letters, digits, dashes and underscores. This also helps me with theme swipping or color changes over the app/site. with this method I can have the autocomplete helping me to remember the names and suggest the good variable. You might get a kick out of what to call a sunny yellow versus a sunflower yellow, or you might just want some help. See archiv… I don’t actually reference any colour directly in my actual css. The base variables are located in mobi-theme-base. Variables. Later, in a “screw it” moment, I named colors more like…. We cover how to comment our code and enhance its readability, naming rules and conventions, brace conventions and keywords with special meaning. Opps, just saw your comment after adding my own. Teams have different approaches to writing CSS selectors. .NET naming conventions are standards how the naming of variables, methods, classes, and other code elements should be defined. Ha! Always use the same naming convention for all your code. Sorry not sure if it was out of the box functionality or if it was a Sass plugin I installed. I personnally prefer having 2 level of abstraction for colors: AWS Amplify - the fastest, easiest way to develop mobile and web apps that scale. $toyota-red: #fc0000; Map meaningful names to actual implementations: It’s a simple approach, but proxying implementation colors to our defined colors means we can change the implementation without breaking or renaming the actual colors, just be sure to not use the meaningful colors directly. Now if the brand identity changed to blue we would have $red: blue. The web community has also developed various tools and approaches that can help you to manage larger CSS projects. In computer programming, a naming convention is a set of rules for choosing the character sequence to be used for identifiers which denote variables, types, functions, and other entities in source code and documentation. lowering saturation when rising brightness, and vice-versa. – Subtle. But, with Sass, you can use a variable! Behind them. Do use singular names for enums. ntimes is an integer number of times to draw something. Same goes for “leading text” etc. – Basic: Most of the UI elements are using these colors ... By naming your variables in … The Block, Element, Modifier methodology (commonly referred to as BEM) is a popular naming convention for classes in HTML and CSS. CSS isn’t the prettiest ‘language,’ but it has successfully powered the styling of the web for over 20 years now. Thanks for the great article! Here’s what I mean: I like this because I pull partials from project to project while changing the brand colors. – Light Re: defaults: if a value isn’t defined, but the rest of the path is valid, it’ll look for a ‘default’ key, even halfway through the path. – Text: Colors to support typography I use the rgb values to use custom opacity. The same BEM entity always has the same name in all technologies (CSS, JavaScript, and HTML). CSS class is formed as block’s or element’s name plus two dashes: .block--mod or .block__elem--mod and .block--color-black with .block--color-red. and $color-secondary: $grey-l16. Define meaningful color names – they should either come from an online color pallette eg. John realizes this may not be the best way to name things in CSS. I started to use on this way, but sometimes just get too long =(, :root{ This is a pretty standard CSS naming convention. I could also see that being nice for tints or shades of the same color, but then why not regular numbers? I’ve generally stuck to themes (typically fruit) butI really like the idea appending the actual color on there — hadn’t considered that. So, there were some mistakes. I personally use Chir.ag’s Name that Color utility. :root { -c-orange: #F060D6; -c-red: #BB532E; -c-blue: #4C9FEB; -c-gray-1: #eee; -c-gray-2: #ccc; -c-gray-3: #555; } Some teams use hyphen delimiters, while others prefer to use the more structured naming convention called BEM. When i need to radically change the color, i switch the variable in the attributes. Each palette is defined in XML file and converted into corresponding *.scss file during project build. In this tutorial we learn the basics of Sass and SCSS and the key differences in their syntax when defining scope and terminating statements. February 17, 2016 by Jessica Lavoie. – Alt colors, Then I broke down each type into categories: We strictly follow BEMs for naming SCSS modifiers and CSS classes. Blue being blue, red being red, and grey being light-grey… or medium-grey. Naming convention. As the shift toward CSS custom properties happens, I think having a --c-orange and --c-gray-5 is similarly appropriate. I have heard lots of developers say they hate CSS. I try never to use colournames or positions. However, if you spontaneously create your variable names as you code, the odds are your naming convention will lack cohesiveness. --c-secundary:#00c5cd; -> If you write a lot of JavaScript then writing variables in camel case is a common practice. Spaces in complicated modifiers are replaced by dash. So I would reference a component colour through that component’s map, but it would reference the fill map, or the type map, etc., which would ultimately reference a generic colours map, where each value is named according to whatever colour it literally is. – Contrast: Dark colors for all high contrast elements CSS Naming Conventions. It's your call after all. ... Why: generally accepted practice that prevents the need to hunt for variable declarations. 3. lowercase_with_underscores use only lowercase letters, even for acronyms,and separate words with _. Sass placeholders are deliberately omitted from this list since they can be considered as regular CSS selectors, thus following the same naming pattern as classes. And a VS Code extension: :). I also use this website (have done so for the past 4-ish years). $grey-l20 should be hsl(0, 2%, 20%), of cause So, I tried to make my colors semantic, in a sense — what they represent not what they literally are: But I found that I absolutely never remembered them and had to constantly refer to where I defined them in order to use them. Naming Convention. From my naming-things-in-HTML skillz, I knew to avoid classes like .header-blue-left-bottom because the color and position of that element might change. You can watch my latest video where I use them to give color on the website I’m creating https://youtu.be/qS2iNHQ1kZA. There are two main approaches: the semantic approach and the non-semantic approach. So I broke down colors into several meaningful types: --c-text-secundary:#656565; Having worked on the AngularJS Material team, I’m partial to Primary, Accent, and Warn. Colors. Global variables can be accessed/used through the entire document, while local variables can be used only inside the selector where it is declared. This is a question programmers often discuss. Implementing these color-name-variables I use the same tactic as Emma does. For colors, I’ll typically really only use brand/theme-related colors, a palette of grays, and status colors (like success, warning, danger, info). Another approach I’ve often seen is to combine named colors with abstracted names. It is darn difficult to maintain CSS. But this tends to bite me right after I do this, especially when the project is just starting. This way I only need to configure colors in one place rather than following my compiler errors all over the place. Naming. CSS variables (a.k.a. Geoff does that and John Carroll lists that here: That can get as verbose as you need it to, even adding variations as you call from the palette. Exception: bit field enums. Hope this article is helpful for you. What naming scheme do you use for color variables? Now, it's easy to change the value of $yellow-green everywhere. I create maps that parallel my ITCSS architecture, where successive maps reference only preceding ones as much as possible, in a theme file at the start, and then use a helper function to return whatever token (doesn’t have to be a colour; I have a sister config file with spacing, font-size, etc. If you have important information to share, please, adding variations as you call from the palette, https://davidwalsh.name/sass-color-variables-dont-suck, http://www.color-blindness.com/color-name-hue/, http://chir.ag/projects/name-that-color/#6195ED, https://docs.microsoft.com/en-us/windows/uwp/design/controls-and-patterns/xaml-theme-resources#the-xaml-color-ramp-and-theme-dependent-brushes, https://marketplace.visualstudio.com/items?itemName=reneroth.colornamify-code. Oracle JET also uses SCSS variables to default some component options, such as the oj-button chroming option. Teams have different approaches to writing CSS selectors. 2. By definition, data attributes are used to store custom data. – Base So he goes ahead and refractors like the codebase like so. The familiarity of such an approach allows the system to grow predictably. There are 3 problems that CSS naming conventions try to solve Some teams use hyphen delimiters, while others prefer to use the more structured naming convention called BEM. Namespacing like $-c-orange is probably an easier approach if you need to do anything at all. One way to mitigate such bugs is to use a js-* class name to denote a relationship with the DOM element in question. I first give a name to all the colors I use using that tool, for example “$color-cornflower-blue: #6195ED;” and then I create variables like $nav-bg-color: $color-cornflower-blue. Have you succeeded at writing CSS that uses color variables in a manner agnostic to the colors they represent?I've tried all of the following, and I have yet to succeed at writing CSS that works well with any color scheme. – Text Creating CSS variables. Mobi.css use the future's CSS syntax --variable-name to declare css variables, and use cssnext to compile it. Naming Conventions. Sipapp.io uses a lot of those color names by default, so I’ve created some custom formatters so I can just cmd+click the colour dock and have it added to my code. In CSS there we … There are 3 problems that CSS naming conventions try to solve. The first thing I wanted to do was variablize my colors. For example: Variable and function names written as camelCase; Global variables written in UPPERCASE (We don't, but it's quite common); Constants (like PI) written in UPPERCASE; Should you use hyp-hens, camelCase, or under_scores in variable names?. Generally, there are 3 problems that CSS naming conventions try to solve: To know what a selector does, just by looking at its name That way if I ever need need to update a color, I update it in a single location, on a single variables file. – Medium By the way, Microsoft introduced something very similar for their UWP apps – https://docs.microsoft.com/en-us/windows/uwp/design/controls-and-patterns/xaml-theme-resources#the-xaml-color-ramp-and-theme-dependent-brushes, Seeing how naming things is hard, I’ve created a npm library for this: 17. One thing that has helped me recently is Visual Studio Code’s Intellisense of A) telling me the value of a sass variable when I hover over it and B) suggesting variable names as I start to type them. CSS itself doesn't have much in the way of in-built organisation, therefore you need to do the work to create consistency and rules around how you write CSS. Maria Antonietta Perna walks you through CSS variables/custom properties, the awesome new technology that adds more flexibility and fun to CSS coding.
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