#3F79BE

#3F79BE

Color Values

HEX

#3F79BE

RGB

63, 121, 190

HSL

212.6, 50.2%, 49.6%

HSV

212.6, 66.8%, 74.5%

CMYK

66.8%, 36.3%, 0.0%, 25.5%

OKLCH

0.5697 0.1233 254.2

Properties

Cool Light Nearest: RAL 5015 Sky Blue

Color Harmonies

Complementary

#3F79BE

#BE843F

Analogous

#3FB8BE

#443FBE

#3F79BE

Triadic

#3F79BE

#BE3F79

#79BE3F

Split Complementary

#3F79BE

#BE443F

#B8BE3F

Tetradic

#3F79BE

#BE3FB8

#BE843F

#3FBE44

Color Blindness Simulation

Original

#3F79BE

Protanopia

#5859AD

Deuteranopia

#5550A9

Tritanopia

#42A09D

Achromatopsia

#727272

CSS Usage

background-color: #3F79BE;
color: #3F79BE;
border-color: #3F79BE;
Nearest Tailwind: Sky 600 #0284C7

Tailwind Shades

50
#F4F7FB
100
#E6ECF5
200
#C9DAED
300
#A3BFE1
400
#719DD0
500
#3F7AC0
600
#336299
700
#294E7B
800
#203D60
900
#1B2F46
950
#111D2C

Contrast Checker

Text on white

4.48:1

AA Fail AAA Fail

Text on black

4.69:1

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