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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
#515B70
RGB Values
81, 91, 112
HSL Values
221°, 16%, 38%
CMYK Values
28%, 19%, 0%, 56%

Color Variations & Tints

  • #74809A

    Lightness: 53%

  • #67738E

    Lightness: 48%

  • #5C677F

    Lightness: 43%

  • #515B70

    Lightness: 38%

    Current color

  • #474F62

    Lightness: 33%

  • #3C4353

    Lightness: 28%

  • #313744

    Lightness: 23%

Accessibility

White Text
6.8
PASS
Black Text
3.1
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 #515B70

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

Current: #515B70

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