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Colorbook
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Color Information

Black

Complete color analysis with professional format conversions, accessibility metrics, and harmonious color combinations for your design projects.

HEX Format
#638ACA
RGB Values
99, 138, 202
HSL Values
217°, 49%, 59%
CMYK Values
51%, 32%, 0%, 21%

Color Variations & Tints

  • #9CB5DD

    Lightness: 74%

  • #89A7D7

    Lightness: 69%

  • #7699D0

    Lightness: 64%

  • #638ACA

    Lightness: 59%

    Current color

  • #507CC3

    Lightness: 54%

  • #406FBA

    Lightness: 49%

  • #3963A7

    Lightness: 44%

Accessibility

White Text
3.5
FAIL
Black Text
6.0
PASS
WCAG AA
PASS
WCAG AAA
FAIL

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 #638ACA

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

Current: #638ACA

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