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Color & CSS Guides

5 articles

Color is one of the most powerful tools in a designer's arsenal — it communicates brand identity, establishes visual hierarchy, guides user attention, and evokes emotional responses. But implementing color effectively in digital products requires understanding both the artistic principles and the technical constraints: how different color models (HEX, RGB, HSL, oklch) represent color mathematically, why contrast ratios matter for accessibility compliance, and how to build systematic color palettes that work across light and dark themes. These guides bridge design theory and CSS implementation, giving you the knowledge to make informed color decisions and translate them into production-ready code that meets WCAG accessibility standards.

What You'll Learn

  • Color model comparison: HEX, RGB, HSL, and the perceptually uniform oklch color space
  • WCAG color contrast: calculating ratios, meeting AA/AAA standards, and fixing violations
  • Dark mode color palettes: systematic approaches to creating accessible dark themes
  • CSS color functions: color-mix(), oklch(), relative color syntax, and browser support
  • Gradient design: creating smooth, vibrant gradients without muddy midtones
  • Color accessibility: beyond contrast ratios — color blindness simulation and inclusive design

Why This Matters

Approximately 300 million people worldwide have color vision deficiency, and WCAG color contrast compliance is a legal requirement under the ADA, EAA, and Section 508. Beyond legal compliance, accessible color choices improve readability and usability for all users. These guides help you build products that are both beautiful and inclusive.

All Articles

Why CSS Gradients Look Muddy in the Middle (and How to Fix It)

Why CSS gradients turn gray in the middle: sRGB interpolation dulls the midpoint. Three fixes — a midpoint stop, oklch interpolation, and better endpoints.

OKLCH and the Future of Color on the Web: Beyond HEX, RGB, and HSL

A practical guide to OKLCH and perceptually uniform color in CSS: why HSL lies about brightness, and how OKLCH fixes palettes, gradients, and wide-gamut.

CSS Flexbox vs CSS Grid: Advanced Layout Engine Comparison

CSS Flexbox vs Grid: one-dimensional vs two-dimensional layout, alignment algorithms, painting performance, and exactly when to reach for each.

Sass vs Vanilla CSS: Do You Still Need a Preprocessor in 2026?

Compare Sass and Vanilla CSS. Learn how modern CSS features have caught up, and when you still might want to use a preprocessor.

CSS Container Queries: The Complete Practical Guide

A practical guide to CSS container queries: defining containment, named containers, CQI/CQW units for fluid type, and debugging circular-dependency bugs.

All articles