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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
#284B82
RGB Values
40, 75, 130
HSL Values
217°, 53%, 33%
CMYK Values
69%, 42%, 0%, 49%

Color Variations & Tints

  • #3A6BBB

    Lightness: 48%

  • #3460A8

    Lightness: 43%

  • #2E5594

    Lightness: 38%

  • #284B82

    Lightness: 33%

    Current color

  • #223F6D

    Lightness: 28%

  • #1C335A

    Lightness: 23%

  • #162846

    Lightness: 18%

Accessibility

White Text
8.7
PASS
Black Text
2.4
FAIL
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 #284B82

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

Current: #284B82

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