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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
#636BFD
RGB Values
99, 107, 253
HSL Values
237°, 97%, 69%
CMYK Values
61%, 58%, 0%, 1%

Color Variations & Tints

  • #AFB3FE

    Lightness: 84%

  • #969BFD

    Lightness: 79%

  • #7C83FD

    Lightness: 74%

  • #636BFD

    Lightness: 69%

    Current color

  • #4A53FC

    Lightness: 64%

  • #313BFC

    Lightness: 59%

  • #1823FB

    Lightness: 54%

Accessibility

White Text
4.2
FAIL
Black Text
5.1
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 #636BFD

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

Current: #636BFD

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