/
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
#643943
RGB Values
100, 57, 67
HSL Values
346°, 27%, 31%
CMYK Values
0%, 43%, 33%, 61%

Color Variations & Tints

  • #955664

    Lightness: 46%

  • #854C59

    Lightness: 41%

  • #75434F

    Lightness: 36%

  • #643943

    Lightness: 31%

    Current color

  • #543039

    Lightness: 26%

  • #44272E

    Lightness: 21%

  • #341E23

    Lightness: 16%

Accessibility

White Text
9.5
PASS
Black Text
2.2
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 #643943

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

Current: #643943

Discover More Colors

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