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Colorbook
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Color Information

Green

Complete color analysis with professional format conversions, accessibility metrics, and harmonious color combinations for your design projects.

HEX Format
#288B44
RGB Values
40, 139, 68
HSL Values
137°, 55%, 35%
CMYK Values
71%, 0%, 51%, 45%

Color Variations & Tints

  • #39C661

    Lightness: 50%

  • #34B257

    Lightness: 45%

  • #2E9E4E

    Lightness: 40%

  • #288B44

    Lightness: 35%

    Current color

  • #22773A

    Lightness: 30%

  • #1D6331

    Lightness: 25%

  • #174F27

    Lightness: 20%

Accessibility

White Text
4.3
FAIL
Black Text
4.9
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 #288B44

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

Current: #288B44

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