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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
#1C72FD
RGB Values
28, 114, 253
HSL Values
217°, 98%, 55%
CMYK Values
89%, 55%, 0%, 1%

Color Variations & Tints

  • #68A1FD

    Lightness: 70%

  • #4E91FD

    Lightness: 65%

  • #3582FD

    Lightness: 60%

  • #1C72FD

    Lightness: 55%

    Current color

  • #0362FC

    Lightness: 50%

  • #0259E3

    Lightness: 45%

  • #024FCA

    Lightness: 40%

Accessibility

White Text
4.3
FAIL
Black Text
4.9
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 #1C72FD

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

Current: #1C72FD

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