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Colorbook
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Color Information

Black

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

HEX Format
#37675B
RGB Values
55, 103, 91
HSL Values
165°, 30%, 31%
CMYK Values
47%, 0%, 12%, 60%

Color Variations & Tints

  • #529887

    Lightness: 46%

  • #498878

    Lightness: 41%

  • #40776A

    Lightness: 36%

  • #37675B

    Lightness: 31%

    Current color

  • #2E564C

    Lightness: 26%

  • #25463E

    Lightness: 21%

  • #1D352F

    Lightness: 16%

Accessibility

White Text
6.5
PASS
Black Text
3.3
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 #37675B

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

Current: #37675B

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