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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
#10179E
RGB Values
16, 23, 158
HSL Values
237°, 82%, 34%
CMYK Values
90%, 85%, 0%, 38%

Color Variations & Tints

  • #1621E3

    Lightness: 49%

  • #141DCC

    Lightness: 44%

  • #121AB5

    Lightness: 39%

  • #10179E

    Lightness: 34%

    Current color

  • #0D1387

    Lightness: 29%

  • #0B106F

    Lightness: 24%

  • #090D58

    Lightness: 19%

Accessibility

White Text
12.8
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 #10179E

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

Current: #10179E

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