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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
#51BAFB
RGB Values
81, 186, 251
HSL Values
203°, 96%, 65%
CMYK Values
68%, 26%, 0%, 2%

Color Variations & Tints

  • #9BD7FD

    Lightness: 80%

  • #82CEFC

    Lightness: 75%

  • #69C4FC

    Lightness: 70%

  • #51BAFB

    Lightness: 65%

    Current color

  • #37B0FB

    Lightness: 60%

  • #1EA6FA

    Lightness: 55%

  • #059CFA

    Lightness: 50%

Accessibility

White Text
2.2
FAIL
Black Text
9.8
PASS
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 #51BAFB

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

Current: #51BAFB

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