Color Converter
Articles, guides, and in-depth tips for the Color Converter — everything you need to get the most out of it.
✦ AI-powered — understands natural language
Why HSL's "50% Lightness" Lies — oklch, Perceptual Color Spaces, and Why They Matter for Design Systems
Why the Same Color Looks Different on a MacBook vs a Standard Monitor — Color Spaces, P3, and oklch
P3 displays (iPhone, MacBook Pro) can show colors that are impossible to display on standard sRGB monitors — and designers working on P3 screens routinely create colors that look different (less vivid) for much of their audience. Here's what "color space" actually means (gamut + encoding), why the same RGB value looks different on sRGB vs P3 displays, how CSS Color Level 4's color() function handles wide gamut, and why oklch is replacing HSL for building perceptually consistent color systems.
Color Blindness and Design: Why Redundant Signals Matter More Than "Colorblind-Safe" Palettes Alone
Roughly 1 in 12 men have some form of red-green color vision deficiency — meaning "red means error, green means success" relies on a color distinction that's specifically the hardest for the most common type of color blindness. Here's how different CVD types affect color perception differently, why redundant non-color signals (icons, labels, patterns) are the core fix, and how CVD simulation reveals confusable color pairs during design review.
Design Tokens, CSS Variables, and Dark Mode: How to Build a Colour System That Scales
Design tokens are a three-tier hierarchy: primitive colours → semantic meanings → component-specific use. CSS custom properties implement this at runtime, making dark mode a one-place change. Here's the full token model, how Tailwind's colour system works, and why OKLCH is replacing HSL for design systems.
Colour Contrast and Accessibility: WCAG Ratios, Common Failures, and Accessible Design Systems
WCAG contrast requirements are now enforceable law in the EU and UK. Here's how contrast ratios are calculated from RGB values, which common colour combinations fail (including Bootstrap blue), and how to build accessible colour systems from the start.
Colour Converter — Hex, RGB, HSL & CMYK with Live Preview
Learn how hex, RGB, HSL, and CMYK colour representations relate to each other, when to use each, how HSL enables systematic colour theming, and how to convert any colour with a free colour converter.
Colour Converter — HEX, RGB, HSL, HSV & CMYK Explained
Learn the difference between HEX, RGB, HSL, HSV, and CMYK colour formats, when each is used, and how to convert between them instantly with a free colour converter for web and design work.
