#3F358B

#3F358B

Color Values

HEX

#3F358B

RGB

63, 53, 139

HSL

247.0, 44.8%, 37.6%

HSV

247.0, 61.9%, 54.5%

CMYK

54.7%, 61.9%, 0.0%, 45.5%

OKLCH

0.3916 0.1374 283.3

Properties

Cool Dark Nearest: slateblue 4

Color Harmonies

Complementary

#3F358B

#818B35

Analogous

#35568B

#6A358B

#3F358B

Triadic

#3F358B

#8B3F35

#358B3F

Split Complementary

#3F358B

#8B6A35

#568B35

Tetradic

#3F358B

#8B3556

#818B35

#358B6A

Color Blindness Simulation

Original

#3F358B

Protanopia

#3B3B76

Deuteranopia

#3B3C71

Tritanopia

#3E6662

Achromatopsia

#3D3D3D

CSS Usage

background-color: #3F358B;
color: #3F358B;
border-color: #3F358B;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F5F4FA
100
#E8E6F4
200
#CFCBEB
300
#ADA6DD
400
#8076CB
500
#5446B9
600
#433894
700
#362D76
800
#2A235C
900
#211D44
950
#15122B

Contrast Checker

Text on white

10.03:1

AA Pass AAA Pass

Text on black

2.09:1

AA Fail AAA Fail

Related Articles

Tutorials

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

ม.ค. 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

ม.ค. 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

ม.ค. 15, 2026