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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
#66BFF7
RGB Values
102, 191, 247
HSL Values
203°, 90%, 68%
CMYK Values
59%, 23%, 0%, 3%

Color Variations & Tints

  • #ADDDFB

    Lightness: 83%

  • #94D3F9

    Lightness: 78%

  • #7CC9F8

    Lightness: 73%

  • #66BFF7

    Lightness: 68%

    Current color

  • #4CB4F6

    Lightness: 63%

  • #34AAF4

    Lightness: 58%

  • #1BA0F3

    Lightness: 53%

Accessibility

White Text
2.0
FAIL
Black Text
10.4
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 #66BFF7

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

Current: #66BFF7

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