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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
#233548
RGB Values
35, 53, 72
HSL Values
211°, 35%, 21%
CMYK Values
51%, 26%, 0%, 72%

Color Variations & Tints

  • #3C5B7C

    Lightness: 36%

  • #334E6B

    Lightness: 31%

  • #2B425A

    Lightness: 26%

  • #233548

    Lightness: 21%

    Current color

  • #1B2837

    Lightness: 16%

  • #121C26

    Lightness: 11%

  • #0A0F15

    Lightness: 6%

Accessibility

White Text
12.5
PASS
Black Text
1.7
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 #233548

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

Current: #233548

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