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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
#649CEE
RGB Values
100, 156, 238
HSL Values
216°, 80%, 66%
CMYK Values
58%, 34%, 0%, 7%

Color Variations & Tints

  • #A8C7F5

    Lightness: 81%

  • #91B8F3

    Lightness: 76%

  • #7AA9F0

    Lightness: 71%

  • #649CEE

    Lightness: 66%

    Current color

  • #4C8CEB

    Lightness: 61%

  • #357DE9

    Lightness: 56%

  • #1E6EE6

    Lightness: 51%

Accessibility

White Text
2.8
FAIL
Black Text
7.5
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 #649CEE

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

Current: #649CEE

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