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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
#305AAD
RGB Values
48, 90, 173
HSL Values
220°, 57%, 43%
CMYK Values
72%, 48%, 0%, 32%

Color Variations & Tints

  • #5780D1

    Lightness: 58%

  • #4370CB

    Lightness: 53%

  • #3563C0

    Lightness: 48%

  • #305AAD

    Lightness: 43%

    Current color

  • #2A4E98

    Lightness: 38%

  • #244484

    Lightness: 33%

  • #1F3A70

    Lightness: 28%

Accessibility

White Text
6.6
PASS
Black Text
3.2
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 #305AAD

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

Current: #305AAD

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