/
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
#0D313B
RGB Values
13, 49, 59
HSL Values
193°, 64%, 14%
CMYK Values
78%, 17%, 0%, 77%

Color Variations & Tints

  • #1B6579

    Lightness: 29%

  • #165364

    Lightness: 24%

  • #11424F

    Lightness: 19%

  • #0D313B

    Lightness: 14%

    Current color

  • #081F26

    Lightness: 9%

  • #040E11

    Lightness: 4%

  • #000000

    Lightness: 0%

Accessibility

White Text
13.8
PASS
Black Text
1.5
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 #0D313B

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

Current: #0D313B

Discover More Colors

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