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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
#648B37
RGB Values
100, 139, 55
HSL Values
88°, 43%, 38%
CMYK Values
28%, 0%, 60%, 45%

Color Variations & Tints

  • #8BBB54

    Lightness: 53%

  • #7EAF46

    Lightness: 48%

  • #719D3F

    Lightness: 43%

  • #648B37

    Lightness: 38%

    Current color

  • #577830

    Lightness: 33%

  • #496629

    Lightness: 28%

  • #3C5421

    Lightness: 23%

Accessibility

White Text
4.0
FAIL
Black Text
5.3
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 #648B37

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

Current: #648B37

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