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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
#133F68
RGB Values
19, 63, 104
HSL Values
209°, 69%, 24%
CMYK Values
82%, 39%, 0%, 59%

Color Variations & Tints

  • #1F66A8

    Lightness: 39%

  • #1B5993

    Lightness: 34%

  • #174C7D

    Lightness: 29%

  • #133F68

    Lightness: 24%

    Current color

  • #0F3252

    Lightness: 19%

  • #0B253C

    Lightness: 14%

  • #071727

    Lightness: 9%

Accessibility

White Text
10.8
PASS
Black Text
1.9
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 #133F68

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

Current: #133F68

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