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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
#B73A28
RGB Values
183, 58, 40
HSL Values
8°, 64%, 44%
CMYK Values
0%, 68%, 78%, 28%

Color Variations & Tints

  • #D96554

    Lightness: 59%

  • #D5533F

    Lightness: 54%

  • #CD422D

    Lightness: 49%

  • #B73A28

    Lightness: 44%

    Current color

  • #A33524

    Lightness: 39%

  • #8E2E1F

    Lightness: 34%

  • #79271B

    Lightness: 29%

Accessibility

White Text
5.8
PASS
Black Text
3.6
FAIL
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 #B73A28

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

Current: #B73A28

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