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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
#219DFB
RGB Values
33, 157, 251
HSL Values
206°, 96%, 56%
CMYK Values
87%, 37%, 0%, 2%

Color Variations & Tints

  • #6EBFFC

    Lightness: 71%

  • #55B3FC

    Lightness: 66%

  • #3CA8FB

    Lightness: 61%

  • #219DFB

    Lightness: 56%

    Current color

  • #0A92FA

    Lightness: 51%

  • #0584E6

    Lightness: 46%

  • #0476CD

    Lightness: 41%

Accessibility

White Text
2.9
FAIL
Black Text
7.3
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 #219DFB

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

Current: #219DFB

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