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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
#21CA51
RGB Values
33, 202, 81
HSL Values
137°, 72%, 46%
CMYK Values
84%, 0%, 60%, 21%

Color Variations & Tints

  • #54E37D

    Lightness: 61%

  • #3EE06C

    Lightness: 56%

  • #28DC5B

    Lightness: 51%

  • #21CA51

    Lightness: 46%

    Current color

  • #1DB448

    Lightness: 41%

  • #1A9E3F

    Lightness: 36%

  • #168836

    Lightness: 31%

Accessibility

White Text
2.2
FAIL
Black Text
9.6
PASS
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 #21CA51

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

Current: #21CA51

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