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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
#391C82
RGB Values
57, 28, 130
HSL Values
257°, 65%, 31%
CMYK Values
56%, 78%, 0%, 49%

Color Variations & Tints

  • #5429C2

    Lightness: 46%

  • #4B25AD

    Lightness: 41%

  • #422097

    Lightness: 36%

  • #391C82

    Lightness: 31%

    Current color

  • #30176D

    Lightness: 26%

  • #261358

    Lightness: 21%

  • #1D0E43

    Lightness: 16%

Accessibility

White Text
12.6
PASS
Black Text
1.7
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 #391C82

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

Current: #391C82

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