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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
#3F4752
RGB Values
63, 71, 82
HSL Values
215°, 13%, 28%
CMYK Values
23%, 13%, 0%, 68%

Color Variations & Tints

  • #5F6B7C

    Lightness: 43%

  • #545F6D

    Lightness: 38%

  • #49525F

    Lightness: 33%

  • #3F4752

    Lightness: 28%

    Current color

  • #333942

    Lightness: 23%

  • #282D34

    Lightness: 18%

  • #1D2025

    Lightness: 13%

Accessibility

White Text
9.4
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 #3F4752

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

Current: #3F4752

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