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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
#290D66
RGB Values
41, 13, 102
HSL Values
259°, 77%, 23%
CMYK Values
60%, 87%, 0%, 60%

Color Variations & Tints

  • #4616AC

    Lightness: 38%

  • #3C1395

    Lightness: 33%

  • #33107E

    Lightness: 28%

  • #290D66

    Lightness: 23%

    Current color

  • #210B51

    Lightness: 18%

  • #18083B

    Lightness: 13%

  • #0F0524

    Lightness: 8%

Accessibility

White Text
15.6
PASS
Black Text
1.3
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 #290D66

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

Current: #290D66

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