/
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
#3F6788
RGB Values
63, 103, 136
HSL Values
207°, 37%, 39%
CMYK Values
54%, 24%, 0%, 47%

Color Variations & Tints

  • #5E8EB5

    Lightness: 54%

  • #4F82AB

    Lightness: 49%

  • #47749A

    Lightness: 44%

  • #3F6788

    Lightness: 39%

    Current color

  • #375A77

    Lightness: 34%

  • #2F4D65

    Lightness: 29%

  • #273F54

    Lightness: 24%

Accessibility

White Text
6.0
PASS
Black Text
3.5
FAIL
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 #3F6788

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

Current: #3F6788

Discover More Colors

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