Chroma Palette Blog
Practical guides, color science breakdowns, and accessibility tutorials designed for front-end developers and UI/UX designers.
WCAG Contrast Ratio Explained: The Formulas Behind Accessible Color
Learn how the WCAG 2.2 contrast ratio is calculated using relative luminance, what 4.5:1 and 7:1 thresholds mean, and how to apply them to real UI components.
CSS & CodeHEX vs RGB vs HSL: When to Use Each Color Format in CSS
Compare HEX, RGB, and HSL color formats in modern web design. Understand the pros and cons of each, how they calculate color, and when to use them in CSS.
Design SystemsHow to Build an Accessible Color Palette for UI Design
Step-by-step guide to building a WCAG 2.2 compliant color palette. Learn to establish base hues, create balanced tonal ramps, assign semantic roles, and test contrast.
CSS & StylingCSS Gradients: Linear vs Radial — A Complete Guide with Examples
Master linear-gradient() and radial-gradient() in CSS. Learn syntax, angles, color stops, midpoint hints, and practical tips for clean, accessible web gradients.
AccessibilityColor Contrast AA vs AAA: What's the Difference and Which Should You Target?
Understand the practical differences between WCAG Level AA and Level AAA contrast requirements, legal standards worldwide, and when to strive for AAA in your designs.
Color TheoryTints, Shades, and Tones: The Designer's Guide to Color Scales
Learn the true definitions of tints, shades, and tones in color theory. Discover how to create smooth color scales for UI design systems using HSL and mix methods.
Color TheoryColor Theory for UI Designers: A Practical Introduction
A no-fluff guide to color theory for digital product designers. Master the color wheel, harmony formulas, psychology of color, and the 60-30-10 distribution rule.
CSS & CodeHow to Convert HEX to RGB (and Back) by Hand
Learn how hexadecimal color codes translate into RGB decimal numbers. Step-by-step breakdown of base-16 math, worked conversion examples, and JavaScript algorithms.