#3F37A2

#3F37A2

Color Values

HEX

#3F37A2

RGB

63, 55, 162

HSL

244.5, 49.3%, 42.5%

HSV

244.5, 66.0%, 63.5%

CMYK

61.1%, 66.0%, 0.0%, 36.5%

OKLCH

0.4148 0.1661 279.7

Properties

Cool Dark Nearest: NCS S 2050-R70B Violet

Color Harmonies

Complementary

#3F37A2

#9AA237

Analogous

#3764A2

#7437A2

#3F37A2

Triadic

#3F37A2

#A23F37

#37A23F

Split Complementary

#3F37A2

#A27437

#64A237

Tetradic

#3F37A2

#A23764

#9AA237

#37A274

Color Blindness Simulation

Original

#3F37A2

Protanopia

#3C3B88

Deuteranopia

#3C3D82

Tritanopia

#3F746F

Achromatopsia

#404040

CSS Usage

background-color: #3F37A2;
color: #3F37A2;
border-color: #3F37A2;
Nearest Tailwind: Indigo 800 #3730A3

Tailwind Shades

50
#F5F4FB
100
#E7E6F5
200
#CCCAED
300
#A8A4E0
400
#7972CF
500
#4A41BE
600
#3B3498
700
#2F297A
800
#25205F
900
#1E1B46
950
#13112C

Contrast Checker

Text on white

9.21:1

AA Pass AAA Pass

Text on black

2.28:1

AA Fail 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