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Colorbook
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Color Information

Black

Complete color analysis with professional format conversions, accessibility metrics, and harmonious color combinations for your design projects.

HEX Format
#171E3F
RGB Values
23, 30, 63
HSL Values
230°, 47%, 17%
CMYK Values
63%, 52%, 0%, 75%

Color Variations & Tints

  • #2B3878

    Lightness: 32%

  • #242F65

    Lightness: 27%

  • #1E2752

    Lightness: 22%

  • #171E3F

    Lightness: 17%

    Current color

  • #10152D

    Lightness: 12%

  • #090C1A

    Lightness: 7%

  • #030407

    Lightness: 2%

Accessibility

White Text
16.2
PASS
Black Text
1.3
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 #171E3F

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

Current: #171E3F

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