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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
#133E97
RGB Values
19, 62, 151
HSL Values
220°, 78%, 33%
CMYK Values
87%, 59%, 0%, 41%

Color Variations & Tints

  • #1B5BDA

    Lightness: 48%

  • #1851C3

    Lightness: 43%

  • #1548AC

    Lightness: 38%

  • #133E97

    Lightness: 33%

    Current color

  • #10357F

    Lightness: 28%

  • #0D2B68

    Lightness: 23%

  • #0A2252

    Lightness: 18%

Accessibility

White Text
9.7
PASS
Black Text
2.2
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 #133E97

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

Current: #133E97

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