/
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
#1718D4
RGB Values
23, 24, 212
HSL Values
240°, 80%, 46%
CMYK Values
89%, 89%, 0%, 17%

Color Variations & Tints

  • #4C4CEB

    Lightness: 61%

  • #3535E9

    Lightness: 56%

  • #1E1EE6

    Lightness: 51%

  • #1718D4

    Lightness: 46%

    Current color

  • #1515BC

    Lightness: 41%

  • #1212A5

    Lightness: 36%

  • #10108E

    Lightness: 31%

Accessibility

White Text
9.9
PASS
Black Text
2.1
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 #1718D4

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

Current: #1718D4

Discover More Colors

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