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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
#42989D
RGB Values
66, 152, 157
HSL Values
183°, 41%, 44%
CMYK Values
58%, 3%, 0%, 38%

Color Variations & Tints

  • #6CBDC1

    Lightness: 59%

  • #5AB5BA

    Lightness: 54%

  • #4AABB0

    Lightness: 49%

  • #42989D

    Lightness: 44%

    Current color

  • #3B888C

    Lightness: 39%

  • #33777A

    Lightness: 34%

  • #2C6568

    Lightness: 29%

Accessibility

White Text
3.4
FAIL
Black Text
6.2
PASS
WCAG AA
PASS
WCAG AAA
FAIL

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 #42989D

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

Current: #42989D

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