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Colorbook
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Color Information

Gray

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

HEX Format
#818D8B
RGB Values
129, 141, 139
HSL Values
170°, 5%, 53%
CMYK Values
9%, 0%, 1%, 45%

Color Variations & Tints

  • #A9B1B0

    Lightness: 68%

  • #9CA5A4

    Lightness: 63%

  • #8F9997

    Lightness: 58%

  • #818D8B

    Lightness: 53%

    Current color

  • #74817E

    Lightness: 48%

  • #687371

    Lightness: 43%

  • #5C6664

    Lightness: 38%

Accessibility

White Text
3.4
FAIL
Black Text
6.1
PASS
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 #818D8B

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

Current: #818D8B

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