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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
#510B01
RGB Values
81, 11, 1
HSL Values
8°, 98%, 16%
CMYK Values
0%, 86%, 99%, 68%

Color Variations & Tints

  • #9D1602

    Lightness: 31%

  • #831301

    Lightness: 26%

  • #6A0F01

    Lightness: 21%

  • #510B01

    Lightness: 16%

    Current color

  • #380801

    Lightness: 11%

  • #1E0400

    Lightness: 6%

  • #050100

    Lightness: 1%

Accessibility

White Text
15.0
PASS
Black Text
1.4
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 #510B01

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

Current: #510B01

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