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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
#1D3139
RGB Values
29, 49, 57
HSL Values
197°, 33%, 17%
CMYK Values
49%, 14%, 0%, 78%

Color Variations & Tints

  • #375D6D

    Lightness: 32%

  • #2E4F5C

    Lightness: 27%

  • #26404B

    Lightness: 22%

  • #1D3139

    Lightness: 17%

    Current color

  • #152329

    Lightness: 12%

  • #0C1418

    Lightness: 7%

  • #030607

    Lightness: 2%

Accessibility

White Text
13.5
PASS
Black Text
1.6
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 #1D3139

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

Current: #1D3139

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