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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
#282DDA
RGB Values
40, 45, 218
HSL Values
238°, 71%, 51%
CMYK Values
82%, 79%, 0%, 15%

Color Variations & Tints

  • #6B6FE6

    Lightness: 66%

  • #555AE2

    Lightness: 61%

  • #3F44DE

    Lightness: 56%

  • #282DDA

    Lightness: 51%

    Current color

  • #2228C9

    Lightness: 46%

  • #1E23B3

    Lightness: 41%

  • #1B1F9D

    Lightness: 36%

Accessibility

White Text
8.5
PASS
Black Text
2.5
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 #282DDA

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

Current: #282DDA

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