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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
#173863
RGB Values
23, 56, 99
HSL Values
214°, 62%, 24%
CMYK Values
77%, 43%, 0%, 61%

Color Variations & Tints

  • #265BA1

    Lightness: 39%

  • #21508C

    Lightness: 34%

  • #1C4478

    Lightness: 29%

  • #173863

    Lightness: 24%

    Current color

  • #122C4E

    Lightness: 19%

  • #0E213A

    Lightness: 14%

  • #091525

    Lightness: 9%

Accessibility

White Text
11.8
PASS
Black Text
1.8
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 #173863

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

Current: #173863

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