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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
#213E7D
RGB Values
33, 62, 125
HSL Values
221°, 58%, 31%
CMYK Values
74%, 50%, 0%, 51%

Color Variations & Tints

  • #315CB9

    Lightness: 46%

  • #2C52A5

    Lightness: 41%

  • #274891

    Lightness: 36%

  • #213E7D

    Lightness: 31%

    Current color

  • #1C3469

    Lightness: 26%

  • #162A55

    Lightness: 21%

  • #112040

    Lightness: 16%

Accessibility

White Text
10.2
PASS
Black Text
2.0
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 #213E7D

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

Current: #213E7D

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