#428CC3

#428CC3

Color Values

HEX

#428CC3

RGB

66, 140, 195

HSL

205.6, 51.8%, 51.2%

HSV

205.6, 66.2%, 76.5%

CMYK

66.2%, 28.2%, 0.0%, 23.5%

OKLCH

0.6172 0.1113 243.5

Properties

Cool Light Nearest: steelblue 3

Color Harmonies

Complementary

#428CC3

#C37942

Analogous

#42C3BA

#424CC3

#428CC3

Triadic

#428CC3

#C3428C

#8CC342

Split Complementary

#428CC3

#C3424C

#C3BA42

Tetradic

#428CC3

#BA42C3

#C37942

#4CC342

Color Blindness Simulation

Original

#428CC3

Protanopia

#6263B6

Deuteranopia

#5E58B2

Tritanopia

#46ABA9

Achromatopsia

#808080

CSS Usage

background-color: #428CC3;
color: #428CC3;
border-color: #428CC3;
Nearest Tailwind: Sky 600 #0284C7

Tailwind Shades

50
#F4F8FB
100
#E5EEF5
200
#C9DEEE
300
#A2C6E2
400
#70A8D2
500
#3D89C2
600
#316E9B
700
#27587C
800
#1F4561
900
#1A3447
950
#10212D

Contrast Checker

Text on white

3.64:1

AA Fail AAA Fail

Text on black

5.77:1

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