/
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
#636B3D
RGB Values
99, 107, 61
HSL Values
70°, 27%, 33%
CMYK Values
7%, 0%, 43%, 58%

Color Variations & Tints

  • #909B59

    Lightness: 48%

  • #818B50

    Lightness: 43%

  • #727B47

    Lightness: 38%

  • #636B3D

    Lightness: 33%

    Current color

  • #545B34

    Lightness: 28%

  • #454A2B

    Lightness: 23%

  • #363A22

    Lightness: 18%

Accessibility

White Text
5.7
PASS
Black Text
3.7
FAIL
WCAG AA
PASS
WCAG AAA
FAIL

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 #636B3D

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

Current: #636B3D

Discover More Colors

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