#4288CD

#4288CD

Color Values

HEX

#4288CD

RGB

66, 136, 205

HSL

209.8, 58.2%, 53.1%

HSV

209.8, 67.8%, 80.4%

CMYK

67.8%, 33.7%, 0.0%, 19.6%

OKLCH

0.6134 0.1267 250.4

Properties

Cool Light Nearest: RAL 5012 Light Blue

Color Harmonies

Complementary

#4288CD

#CD8742

Analogous

#42CDCD

#4242CD

#4288CD

Triadic

#4288CD

#CD4288

#88CD42

Split Complementary

#4288CD

#CD4242

#CDCD42

Tetradic

#4288CD

#CD42CD

#CD8742

#42CD42

Color Blindness Simulation

Original

#4288CD

Protanopia

#6061BC

Deuteranopia

#5C57B8

Tritanopia

#46AFAC

Achromatopsia

#7E7E7E

CSS Usage

background-color: #4288CD;
color: #4288CD;
border-color: #4288CD;
Nearest Tailwind: Sky 600 #0284C7

Tailwind Shades

50
#F4F7FB
100
#E4EDF6
200
#C7DBF0
300
#9EC2E5
400
#6AA1D8
500
#3580CA
600
#2B66A1
700
#225281
800
#1B4065
900
#17314A
950
#0F1F2F

Contrast Checker

Text on white

3.73:1

AA Fail AAA Fail

Text on black

5.63:1

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