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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
#253458
RGB Values
37, 52, 88
HSL Values
222°, 41%, 25%
CMYK Values
58%, 41%, 0%, 65%

Color Variations & Tints

  • #3C5590

    Lightness: 40%

  • #354B7E

    Lightness: 35%

  • #2D406C

    Lightness: 30%

  • #253458

    Lightness: 25%

    Current color

  • #1E2B48

    Lightness: 20%

  • #172036

    Lightness: 15%

  • #0F1524

    Lightness: 10%

Accessibility

White Text
12.3
PASS
Black Text
1.7
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 #253458

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

Current: #253458

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