#3F3F97

#3F3F97

Color Values

HEX

#3F3F97

RGB

63, 63, 151

HSL

240.0, 41.1%, 42.0%

HSV

240.0, 58.3%, 59.2%

CMYK

58.3%, 58.3%, 0.0%, 40.8%

OKLCH

0.4199 0.1406 278.5

Properties

Cool Dark Nearest: slateblue 4

Color Harmonies

Complementary

#3F3F97

#97973F

Analogous

#3F6B97

#6B3F97

#3F3F97

Triadic

#3F3F97

#973F3F

#3F973F

Split Complementary

#3F3F97

#976B3F

#6B973F

Tetradic

#3F3F97

#973F6B

#97973F

#3F976B

Color Blindness Simulation

Original

#3F3F97

Protanopia

#3F3F82

Deuteranopia

#3F3F7D

Tritanopia

#3F716D

Achromatopsia

#454545

CSS Usage

background-color: #3F3F97;
color: #3F3F97;
border-color: #3F3F97;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F5F5FA
100
#E7E7F3
200
#CDCDEA
300
#A9A9DB
400
#7A7AC7
500
#4B4BB4
600
#3C3C90
700
#303073
800
#26265A
900
#1F1F42
950
#13132A

Contrast Checker

Text on white

8.86:1

AA Pass AAA Pass

Text on black

2.37:1

AA Fail 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