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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
#154537
RGB Values
21, 69, 55
HSL Values
163°, 53%, 18%
CMYK Values
70%, 0%, 20%, 73%

Color Variations & Tints

  • #288167

    Lightness: 33%

  • #226D58

    Lightness: 28%

  • #1C5A48

    Lightness: 23%

  • #154537

    Lightness: 18%

    Current color

  • #103329

    Lightness: 13%

  • #0A1F19

    Lightness: 8%

  • #040C09

    Lightness: 3%

Accessibility

White Text
10.8
PASS
Black Text
1.9
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 #154537

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

Current: #154537

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