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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
#51A454
RGB Values
81, 164, 84
HSL Values
122°, 34%, 48%
CMYK Values
51%, 0%, 49%, 36%

Color Variations & Tints

  • #81C183

    Lightness: 63%

  • #6FB872

    Lightness: 58%

  • #5EB061

    Lightness: 53%

  • #51A454

    Lightness: 48%

    Current color

  • #48934B

    Lightness: 43%

  • #408242

    Lightness: 38%

  • #387139

    Lightness: 33%

Accessibility

White Text
3.1
FAIL
Black Text
6.8
PASS
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 #51A454

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

Current: #51A454

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