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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
#40153B
RGB Values
64, 21, 59
HSL Values
307°, 51%, 17%
CMYK Values
0%, 67%, 8%, 75%

Color Variations & Tints

  • #7B2872

    Lightness: 32%

  • #682260

    Lightness: 27%

  • #551B4E

    Lightness: 22%

  • #40153B

    Lightness: 17%

    Current color

  • #2E0F2B

    Lightness: 12%

  • #1B0919

    Lightness: 7%

  • #080207

    Lightness: 2%

Accessibility

White Text
15.1
PASS
Black Text
1.4
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 #40153B

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

Current: #40153B

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