#428CCF

#428CCF

Color Values

HEX

#428CCF

RGB

66, 140, 207

HSL

208,5, 59,5%, 53,5%

HSV

208,5, 68,1%, 81,2%

CMYK

68,1%, 32,4%, 0,0%, 18,8%

OKLCH

0,6235 0,1255 248,5

Properties

Cool Light Nearest: RAL 5012 Light Blue

Color Harmonies

Complementary

#428CCF

#CF8542

Analogous

#42CFCB

#4245CF

#428CCF

Triadic

#428CCF

#CF428C

#8CCF42

Split Complementary

#428CCF

#CF4245

#CFCB42

Tetradic

#428CCF

#CB42CF

#CF8542

#45CF42

Color Blindness Simulation

Original

#428CCF

Protanopia

#6263BF

Deuteranopia

#5E58BB

Tritanopia

#46B2AF

Achromatopsia

#818181

CSS Usage

background-color: #428CCF;
color: #428CCF;
border-color: #428CCF;
Nearest Tailwind: Sky 600 #0284C7

Tailwind Shades

50
#F3F8FB
100
#E4EEF6
200
#C6DCF1
300
#9DC4E6
400
#69A3D9
500
#3483CB
600
#2969A3
700
#215482
800
#1A4266
900
#17324A
950
#0E1F2F

Contrast Checker

Text on white

3,57:1

AA Fail AAA Fail

Text on black

5,88:1

AA Pass AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026