/
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
#285756
RGB Values
40, 87, 86
HSL Values
179°, 37%, 25%
CMYK Values
54%, 0%, 1%, 66%

Color Variations & Tints

  • #408C8A

    Lightness: 40%

  • #387A79

    Lightness: 35%

  • #306968

    Lightness: 30%

  • #285756

    Lightness: 25%

    Current color

  • #204645

    Lightness: 20%

  • #183434

    Lightness: 15%

  • #102323

    Lightness: 10%

Accessibility

White Text
8.1
PASS
Black Text
2.6
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 #285756

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

Current: #285756

Discover More Colors

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