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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
#0281F3
RGB Values
2, 129, 243
HSL Values
208°, 98%, 48%
CMYK Values
99%, 47%, 0%, 5%

Color Variations & Tints

  • #44A7FD

    Lightness: 63%

  • #2B9BFD

    Lightness: 58%

  • #128FFD

    Lightness: 53%

  • #0281F3

    Lightness: 48%

    Current color

  • #0275D9

    Lightness: 43%

  • #0267C0

    Lightness: 38%

  • #025AA7

    Lightness: 33%

Accessibility

White Text
3.9
FAIL
Black Text
5.4
PASS
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 #0281F3

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

Current: #0281F3

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