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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
#2563AE
RGB Values
37, 99, 174
HSL Values
213°, 65%, 41%
CMYK Values
79%, 43%, 0%, 32%

Color Variations & Tints

  • #4688D8

    Lightness: 56%

  • #317AD3

    Lightness: 51%

  • #296EC2

    Lightness: 46%

  • #2563AE

    Lightness: 41%

    Current color

  • #205697

    Lightness: 36%

  • #1C4A82

    Lightness: 31%

  • #173E6D

    Lightness: 26%

Accessibility

White Text
6.0
PASS
Black Text
3.5
FAIL
WCAG AA
PASS
WCAG AAA
FAIL

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 #2563AE

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

Current: #2563AE

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