/
Colorbook
Sign in Sign up

Color Information

Black

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

HEX Format
#284B44
RGB Values
40, 75, 68
HSL Values
168°, 30%, 23%
CMYK Values
47%, 0%, 9%, 71%

Color Variations & Tints

  • #447E72

    Lightness: 38%

  • #3B6D63

    Lightness: 33%

  • #325D54

    Lightness: 28%

  • #284B44

    Lightness: 23%

    Current color

  • #203C36

    Lightness: 18%

  • #172B27

    Lightness: 13%

  • #0E1B18

    Lightness: 8%

Accessibility

White Text
9.6
PASS
Black Text
2.2
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 #284B44

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

Current: #284B44

Discover More Colors

Explore a randomly curated selection of colors. Each refresh brings new inspiration for your palette.