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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
#421A88
RGB Values
66, 26, 136
HSL Values
262°, 68%, 32%
CMYK Values
51%, 81%, 0%, 47%

Color Variations & Tints

  • #6226C9

    Lightness: 47%

  • #5822B4

    Lightness: 42%

  • #4D1E9F

    Lightness: 37%

  • #421A88

    Lightness: 32%

    Current color

  • #381674

    Lightness: 27%

  • #2E125E

    Lightness: 22%

  • #230E49

    Lightness: 17%

Accessibility

White Text
12.1
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 #421A88

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

Current: #421A88

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