/
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
#1B3538
RGB Values
27, 53, 56
HSL Values
186°, 35%, 16%
CMYK Values
52%, 5%, 0%, 78%

Color Variations & Tints

  • #33656B

    Lightness: 31%

  • #2B555A

    Lightness: 26%

  • #234548

    Lightness: 21%

  • #1B3538

    Lightness: 16%

    Current color

  • #122426

    Lightness: 11%

  • #0A1415

    Lightness: 6%

  • #020303

    Lightness: 1%

Accessibility

White Text
13.0
PASS
Black Text
1.6
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 #1B3538

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

Current: #1B3538

Discover More Colors

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