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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
#0166BA
RGB Values
1, 102, 186
HSL Values
207°, 99%, 37%
CMYK Values
99%, 45%, 0%, 27%

Color Variations & Tints

  • #0B91FE

    Lightness: 52%

  • #0184EF

    Lightness: 47%

  • #0176D5

    Lightness: 42%

  • #0166BA

    Lightness: 37%

    Current color

  • #015AA2

    Lightness: 32%

  • #014C89

    Lightness: 27%

  • #013E70

    Lightness: 22%

Accessibility

White Text
5.8
PASS
Black Text
3.6
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 #0166BA

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

Current: #0166BA

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