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Practical color guides

Short, task-focused references that connect color theory and standards directly to a working tool.

HEX, RGB, HSL, and OKLCH color models

Understand which color format to use in CSS, design tools, accessibility checks, and modern wide-gamut workflows.

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How color harmony works

Use complementary, analogous, triadic, and split-complementary relationships without treating the color wheel as a rigid rule.

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Tints, shades, tones, and color scales

Learn the difference between mixing with white, black, and gray—and why perceptual scales are better for interface tokens.

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WCAG color contrast for real interfaces

Check text, components, states, and palettes against WCAG 2.2 without claiming that a palette alone is compliant.

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How to extract a useful palette from an image

Turn image samples into a practical design palette by cleaning near-duplicates, assigning roles, and checking contrast.

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Build custom Tailwind v4 colors with OKLCH

Generate a perceptually ordered 50–950 scale and export Tailwind v4 theme variables with accessible role guidance.

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