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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
#21104C
RGB Values
33, 16, 76
HSL Values
257°, 65%, 18%
CMYK Values
57%, 79%, 0%, 70%

Color Variations & Tints

  • #3C1D8B

    Lightness: 33%

  • #331976

    Lightness: 28%

  • #2A1561

    Lightness: 23%

  • #21104C

    Lightness: 18%

    Current color

  • #180C37

    Lightness: 13%

  • #0F0722

    Lightness: 8%

  • #05030D

    Lightness: 3%

Accessibility

White Text
16.9
PASS
Black Text
1.2
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 #21104C

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

Current: #21104C

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