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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
#281C3E
RGB Values
40, 28, 62
HSL Values
261°, 38%, 18%
CMYK Values
35%, 55%, 0%, 76%

Color Variations & Tints

  • #4B3474

    Lightness: 33%

  • #3F2C63

    Lightness: 28%

  • #342451

    Lightness: 23%

  • #281C3E

    Lightness: 18%

    Current color

  • #1D152E

    Lightness: 13%

  • #120D1C

    Lightness: 8%

  • #07050B

    Lightness: 3%

Accessibility

White Text
15.8
PASS
Black Text
1.3
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 #281C3E

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

Current: #281C3E

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