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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
#284BE4
RGB Values
40, 75, 228
HSL Values
229°, 78%, 53%
CMYK Values
82%, 67%, 0%, 11%

Color Variations & Tints

  • #6E85ED

    Lightness: 68%

  • #5772EA

    Lightness: 63%

  • #405FE7

    Lightness: 58%

  • #284BE4

    Lightness: 53%

    Current color

  • #1B3EDA

    Lightness: 48%

  • #1837C3

    Lightness: 43%

  • #1531AC

    Lightness: 38%

Accessibility

White Text
6.5
PASS
Black Text
3.2
FAIL
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 #284BE4

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

Current: #284BE4

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