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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
#3FA3EB
RGB Values
63, 163, 235
HSL Values
205°, 81%, 58%
CMYK Values
73%, 31%, 0%, 8%

Color Variations & Tints

  • #82C3F2

    Lightness: 73%

  • #6BB8EF

    Lightness: 68%

  • #54ADED

    Lightness: 63%

  • #3FA3EB

    Lightness: 58%

    Current color

  • #2697E8

    Lightness: 53%

  • #178BDE

    Lightness: 48%

  • #157CC6

    Lightness: 43%

Accessibility

White Text
2.7
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 #3FA3EB

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

Current: #3FA3EB

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