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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
#81A5E9
RGB Values
129, 165, 233
HSL Values
219°, 70%, 71%
CMYK Values
45%, 29%, 0%, 9%

Color Variations & Tints

  • #C2D4F4

    Lightness: 86%

  • #ADC4F0

    Lightness: 81%

  • #97B5ED

    Lightness: 76%

  • #81A5E9

    Lightness: 71%

    Current color

  • #6C96E5

    Lightness: 66%

  • #5687E1

    Lightness: 61%

  • #4077DD

    Lightness: 56%

Accessibility

White Text
2.5
FAIL
Black Text
8.5
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 #81A5E9

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

Current: #81A5E9

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