/
Colorbook
Sign in Sign up

Color Information

Black

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

HEX Format
#643E72
RGB Values
100, 62, 114
HSL Values
284°, 30%, 35%
CMYK Values
12%, 46%, 0%, 55%

Color Variations & Tints

  • #9159A6

    Lightness: 50%

  • #835095

    Lightness: 45%

  • #744785

    Lightness: 40%

  • #643E72

    Lightness: 35%

    Current color

  • #573663

    Lightness: 30%

  • #492D53

    Lightness: 25%

  • #3A2442

    Lightness: 20%

Accessibility

White Text
8.5
PASS
Black Text
2.5
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 #643E72

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

Current: #643E72

Discover More Colors

Explore a randomly curated selection of colors. Each refresh brings new inspiration for your palette.