#427DBA

#427DBA

Color Values

HEX

#427DBA

RGB

66, 125, 186

HSL

210.5, 47.6%, 49.4%

HSV

210.5, 64.5%, 72.9%

CMYK

64.5%, 32.8%, 0.0%, 27.1%

OKLCH

0.5779 0.113 251.1

Properties

Cool Light Nearest: RAL 5012 Light Blue

Color Harmonies

Complementary

#427DBA

#BA7F42

Analogous

#42B9BA

#4342BA

#427DBA

Triadic

#427DBA

#BA427D

#7DBA42

Split Complementary

#427DBA

#BA4342

#B9BA42

Tetradic

#427DBA

#BA42B9

#BA7F42

#42BA43

Color Blindness Simulation

Original

#427DBA

Protanopia

#5C5CAB

Deuteranopia

#5854A8

Tritanopia

#45A09D

Achromatopsia

#757575

CSS Usage

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

Tailwind Shades

50
#F4F7FA
100
#E6EDF4
200
#CADBEC
300
#A5C1DF
400
#74A0CE
500
#437EBC
600
#356597
700
#2B5178
800
#213F5E
900
#1C3045
950
#111E2C

Contrast Checker

Text on white

4.31:1

AA Fail AAA Fail

Text on black

4.87:1

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