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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
#1E5BBC
RGB Values
30, 91, 188
HSL Values
217°, 72%, 43%
CMYK Values
84%, 52%, 0%, 26%

Color Variations & Tints

  • #4782E1

    Lightness: 58%

  • #3173DD

    Lightness: 53%

  • #2266D3

    Lightness: 48%

  • #1E5BBC

    Lightness: 43%

    Current color

  • #1B51A7

    Lightness: 38%

  • #184691

    Lightness: 33%

  • #143B7B

    Lightness: 28%

Accessibility

White Text
6.4
PASS
Black Text
3.3
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 #1E5BBC

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

Current: #1E5BBC

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