#3F90DC

#3F90DC

Color Values

HEX

#3F90DC

RGB

63, 144, 220

HSL

209.0, 69.2%, 55.5%

HSV

209.0, 71.4%, 86.3%

CMYK

71.4%, 34.5%, 0.0%, 13.7%

OKLCH

0.6387 0.1389 249.7

Properties

Cool Light Nearest: cornflowerblue

Color Harmonies

Complementary

#3F90DC

#DC8B3F

Analogous

#3FDCD9

#3F42DC

#3F90DC

Triadic

#3F90DC

#DC3F90

#90DC3F

Split Complementary

#3F90DC

#DC3F42

#DCD93F

Tetradic

#3F90DC

#D93FDC

#DC8B3F

#42DC3F

Color Blindness Simulation

Original

#3F90DC

Protanopia

#6263CA

Deuteranopia

#5D57C5

Tritanopia

#43BBB8

Achromatopsia

#848484

CSS Usage

background-color: #3F90DC;
color: #3F90DC;
border-color: #3F90DC;
Nearest Tailwind: Sky 600 #0284C7

Tailwind Shades

50
#F3F7FC
100
#E3EDF8
200
#C3DCF4
300
#97C3EC
400
#5FA3E2
500
#2782D8
600
#1F68AD
700
#19538A
800
#14416C
900
#12314F
950
#0C1F32

Contrast Checker

Text on white

3.37:1

AA Fail AAA Fail

Text on black

6.23:1

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