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Colorbook
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Color Information

Black

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

HEX Format
#57180B
RGB Values
87, 24, 11
HSL Values
10°, 78%, 19%
CMYK Values
0%, 72%, 87%, 66%

Color Variations & Tints

  • #9A2A13

    Lightness: 34%

  • #842310

    Lightness: 29%

  • #6D1D0D

    Lightness: 24%

  • #57180B

    Lightness: 19%

    Current color

  • #401108

    Lightness: 14%

  • #290B05

    Lightness: 9%

  • #120502

    Lightness: 4%

Accessibility

White Text
13.6
PASS
Black Text
1.5
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 #57180B

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

Current: #57180B

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