Search
A Whistle-Stop Tour of 4 New CSS Color Features
11.2.2022
I was just writing in my “What’s new in since CSS3?” article about recent and possible future changes to CSS colors. It’s weirdly a lot. There are just as many or more new and upcoming ways to define colors than …
A Whistle-Stop Tour of 4 New CSS Color Features...
Using JavaScript to Adjust Saturation and Brightness of RGB Colors
6.10.2020
Lately I’ve been taking a look into designing with color (or “colour” as we spell it where I’m from in New Zealand). Looking at Adam Wathan and Steve Schroger’s advice on the subject, we find that we’re going to need more than just five nice looking hex codes from a color palette...
Global CSS options with custom properties
30.5.2020
With a preprocessor, like Sass, building a logical “do this or don’t” setting is fairly straightforward:
$option: false;
@mixin doThing {
@if $option {
do-thing: yep;
}
}
.el {
@include doThing;
}
Can we do that in native CSS with custom properties? Mark Otto shows...
No-Comma Color Functions in CSS
4.5.2020
There have been a couple of viral tweets about this lately, one from Adam Argyle and one from Mathias Bynes. This is a nice change that makes CSS a bit more clear. Before, every single color function actually needs two functions, one for transparency and one without, this eliminates that need...
Hex Opacity Table
6.3.2020
We’ve used hex colors for years but 8-digit hexadecimal is still relatively new. While rgba is simple to understand, 8-digit hex is more difficult, as you need to provide a hex representation of a numeric value. The following is a hexadecimal chart of opacity! 100 FF 99 FC 98 FA 97 F7 96...
Did you know that CSS Custom Properties can handle images too?
27.2.2019
So you might be aware of CSS Custom Properties that let you set a variable, such as a theme color, and then apply it to multiple classes like this:
:root {
--theme: #777;
}
.alert {
background: var(—-theme);
}
.button {
background: var(—-theme);
}
Well, I had seen this pattern so often...
CSS Variables + calc() + rgb() = Enforcing High Contrast Colors
21.2.2019
As you may know, the recent updates and additions to CSS are extremely powerful. From Flexbox to Grid, and — what we’re concerned about here — Custom Properties (aka CSS variables), all of which make robust and dynamic layouts and interfaces easier than ever while opening up many other...
Converting Color Spaces in JavaScript
10.1.2019
A challenge I faced in building an image "emojifier" was that I needed to change the color spaces of values obtained using getImageData() from RGB to HSL. I used arrays of emojis arranged by brightness and saturation, and they were HSL-based for the best matches of average pixel colors with...
8 Digit Hex Colors
16.7.2018
One of the most requested capabilities in my early days of web development was the ability to set opacity on elements and even PNG images without the need for browser-specific CSS or hacks. Eventually we got native opacity support and even enjoyed rgba(), the ability to cite an opacity level with...