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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
#133F6B
RGB Values
19, 63, 107
HSL Values
210°, 70%, 25%
CMYK Values
82%, 41%, 0%, 58%

Color Variations & Tints

  • #1F66AD

    Lightness: 40%

  • #1B5998

    Lightness: 35%

  • #174D82

    Lightness: 30%

  • #133F6B

    Lightness: 25%

    Current color

  • #0F3357

    Lightness: 20%

  • #0B2641

    Lightness: 15%

  • #081A2B

    Lightness: 10%

Accessibility

White Text
10.8
PASS
Black Text
2.0
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 #133F6B

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

Current: #133F6B

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