#427BC3

#427BC3

Color Values

HEX

#427BC3

RGB

66, 123, 195

HSL

213.5, 51.8%, 51.2%

HSV

213.5, 66.2%, 76.5%

CMYK

66.2%, 36.9%, 0.0%, 23.5%

OKLCH

0.5784 0.1267 255.3

Properties

Cool Light Nearest: RAL 5015 Sky Blue

Color Harmonies

Complementary

#427BC3

#C38A42

Analogous

#42BBC3

#4A42C3

#427BC3

Triadic

#427BC3

#C3427B

#7BC342

Split Complementary

#427BC3

#C34A42

#BBC342

Tetradic

#427BC3

#C342BB

#C38A42

#42C34A

Color Blindness Simulation

Original

#427BC3

Protanopia

#5B5BB2

Deuteranopia

#5753AD

Tritanopia

#45A4A1

Achromatopsia

#747474

CSS Usage

background-color: #427BC3;
color: #427BC3;
border-color: #427BC3;
Nearest Tailwind: Sky 600 #0284C7

Tailwind Shades

50
#F4F7FB
100
#E5ECF5
200
#C9D9EE
300
#A2BEE2
400
#709BD2
500
#3D78C2
600
#31609B
700
#274D7C
800
#1F3C61
900
#1A2E47
950
#101D2D

Contrast Checker

Text on white

4.33:1

AA Fail AAA Fail

Text on black

4.85:1

AA Pass AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026