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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
#03031D
RGB Values
3, 3, 29
HSL Values
240°, 81%, 6%
CMYK Values
90%, 90%, 0%, 89%

Color Variations & Tints

  • #0A0A61

    Lightness: 21%

  • #08084A

    Lightness: 16%

  • #050533

    Lightness: 11%

  • #03031D

    Lightness: 6%

    Current color

  • #000005

    Lightness: 1%

  • #000000

    Lightness: 0%

  • #000000

    Lightness: 0%

Accessibility

White Text
20.3
PASS
Black Text
1.0
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 #03031D

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

Current: #03031D

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