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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
#371CFD
RGB Values
55, 28, 253
HSL Values
247°, 98%, 55%
CMYK Values
78%, 89%, 0%, 1%

Color Variations & Tints

  • #7968FD

    Lightness: 70%

  • #634EFD

    Lightness: 65%

  • #4C35FD

    Lightness: 60%

  • #371CFD

    Lightness: 55%

    Current color

  • #2003FC

    Lightness: 50%

  • #1D02E3

    Lightness: 45%

  • #1902CA

    Lightness: 40%

Accessibility

White Text
7.6
PASS
Black Text
2.7
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 #371CFD

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

Current: #371CFD

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