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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
#A51616
RGB Values
165, 22, 22
HSL Values
0°, 76%, 37%
CMYK Values
0%, 87%, 87%, 35%

Color Variations & Tints

  • #E22828

    Lightness: 52%

  • #D31D1D

    Lightness: 47%

  • #BC1A1A

    Lightness: 42%

  • #A51616

    Lightness: 37%

    Current color

  • #901414

    Lightness: 32%

  • #791111

    Lightness: 27%

  • #630D0D

    Lightness: 22%

Accessibility

White Text
7.7
PASS
Black Text
2.7
FAIL
WCAG AA
PASS
WCAG AAA
PASS

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 #A51616

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

Current: #A51616

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