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Colorbook
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Color Information

Blue

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

HEX Format
#180F5C
RGB Values
24, 15, 92
HSL Values
247°, 72%, 21%
CMYK Values
74%, 84%, 0%, 64%

Color Variations & Tints

  • #291A9E

    Lightness: 36%

  • #231688

    Lightness: 31%

  • #1E1372

    Lightness: 26%

  • #180F5C

    Lightness: 21%

    Current color

  • #120B46

    Lightness: 16%

  • #0D0830

    Lightness: 11%

  • #07041A

    Lightness: 6%

Accessibility

White Text
16.6
PASS
Black Text
1.3
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 #180F5C

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

Current: #180F5C

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