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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
#819BD5
RGB Values
129, 155, 213
HSL Values
221°, 50%, 67%
CMYK Values
39%, 27%, 0%, 16%

Color Variations & Tints

  • #BAC9E8

    Lightness: 82%

  • #A7BAE2

    Lightness: 77%

  • #94ABDB

    Lightness: 72%

  • #819BD5

    Lightness: 67%

    Current color

  • #6E8CCF

    Lightness: 62%

  • #5B7DC8

    Lightness: 57%

  • #476EC2

    Lightness: 52%

Accessibility

White Text
2.8
FAIL
Black Text
7.6
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 #819BD5

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

Current: #819BD5

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