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Colorbook
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Color Information

Red

Complete color analysis with professional format conversions, accessibility metrics, and harmonious color combinations for your design projects.

HEX Format
#ED3221
RGB Values
237, 50, 33
HSL Values
5°, 85%, 53%
CMYK Values
0%, 79%, 86%, 7%

Color Variations & Tints

  • #F37468

    Lightness: 68%

  • #F15E50

    Lightness: 63%

  • #EF4839

    Lightness: 58%

  • #ED3221

    Lightness: 53%

    Current color

  • #E22412

    Lightness: 48%

  • #CB2010

    Lightness: 43%

  • #B31C0F

    Lightness: 38%

Accessibility

White Text
4.1
FAIL
Black Text
5.1
PASS
WCAG AA
PASS
WCAG AAA
FAIL

Accessibility Guide

Contrast Ratios
Higher values (4.5+) ensure better readability for users with visual impairments.
WCAG AA Standard
Minimum requirement: 4.5:1 contrast for normal text, 3:1 for large text.
WCAG AAA Standard
Enhanced level: 7:1 contrast for normal text, 4.5:1 for large text.

Color Harmonies

  • Complementary

    Colors opposite on the color wheel, creating high contrast

  • Triadic

    Three evenly spaced colors forming a triangle on the color wheel

  • Analogous

    Adjacent colors on the color wheel, creating harmony and unity

Be picky and fine tune your color: colors very near to #ED3221

Systematic progression of extremely similar colors. Each color represents a precise step in lightness variation.

Current: #ED3221

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