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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
#143DDF
RGB Values
20, 61, 223
HSL Values
228°, 84%, 48%
CMYK Values
91%, 73%, 0%, 13%

Color Variations & Tints

  • #5171F0

    Lightness: 63%

  • #3A5EEE

    Lightness: 58%

  • #224BEC

    Lightness: 53%

  • #143DDF

    Lightness: 48%

    Current color

  • #1236CA

    Lightness: 43%

  • #1030B2

    Lightness: 38%

  • #0D2A9B

    Lightness: 33%

Accessibility

White Text
7.6
PASS
Black Text
2.8
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 #143DDF

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

Current: #143DDF

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