#428CD7

#428CD7

Color Values

HEX

#428CD7

RGB

66, 140, 215

HSL

210.2, 65.1%, 55.1%

HSV

210.2, 69.3%, 84.3%

CMYK

69.3%, 34.9%, 0.0%, 15.7%

OKLCH

0.6279 0.1354 251.1

Properties

Cool Light Nearest: cornflowerblue

Color Harmonies

Complementary

#428CD7

#D78D42

Analogous

#42D7D7

#4242D7

#428CD7

Triadic

#428CD7

#D7428C

#8CD742

Split Complementary

#428CD7

#D74242

#D7D742

Tetradic

#428CD7

#D742D7

#D78D42

#42D742

Color Blindness Simulation

Original

#428CD7

Protanopia

#6263C5

Deuteranopia

#5E58C0

Tritanopia

#46B7B3

Achromatopsia

#828282

CSS Usage

background-color: #428CD7;
color: #428CD7;
border-color: #428CD7;
Nearest Tailwind: Sky 600 #0284C7

Tailwind Shades

50
#F3F7FC
100
#E3EDF7
200
#C4DBF3
300
#9AC2EA
400
#63A0DE
500
#2C7FD3
600
#2466A8
700
#1C5187
800
#163F69
900
#14304D
950
#0D1E31

Contrast Checker

Text on white

3.52:1

AA Fail AAA Fail

Text on black

5.96:1

AA Pass AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026