/
Colorbook
Sign in Sign up

Color Information

Blue

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

HEX Format
#238FD7
RGB Values
35, 143, 215
HSL Values
204°, 72%, 49%
CMYK Values
84%, 33%, 0%, 16%

Color Variations & Tints

  • #61B0E5

    Lightness: 64%

  • #4BA6E2

    Lightness: 59%

  • #359BDE

    Lightness: 54%

  • #238FD7

    Lightness: 49%

    Current color

  • #1F80C1

    Lightness: 44%

  • #1C72AB

    Lightness: 39%

  • #186395

    Lightness: 34%

Accessibility

White Text
3.5
FAIL
Black Text
6.0
PASS
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 #238FD7

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

Current: #238FD7

Discover More Colors

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