#3F3D81

#3F3D81

Color Values

HEX

#3F3D81

RGB

63, 61, 129

HSL

241.8, 35.8%, 37.3%

HSV

241.8, 52.7%, 50.6%

CMYK

51.2%, 52.7%, 0.0%, 49.4%

OKLCH

0.3992 0.1113 281.4

Properties

Cool Dark Nearest: darkslateblue

Color Harmonies

Complementary

#3F3D81

#7F813D

Analogous

#3D5D81

#613D81

#3F3D81

Triadic

#3F3D81

#813F3D

#3D813F

Split Complementary

#3F3D81

#81613D

#5D813D

Tetradic

#3F3D81

#813D5D

#7F813D

#3D8161

Color Blindness Simulation

Original

#3F3D81

Protanopia

#3E3E71

Deuteranopia

#3E3E6D

Tritanopia

#3F6461

Achromatopsia

#424242

CSS Usage

background-color: #3F3D81;
color: #3F3D81;
border-color: #3F3D81;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F5F5FA
100
#E8E8F3
200
#CFCFE8
300
#ADACD8
400
#817FC2
500
#5552AD
600
#44418B
700
#36346F
800
#2A2957
900
#222140
950
#151528

Contrast Checker

Text on white

9.56:1

AA Pass AAA Pass

Text on black

2.2:1

AA Fail AAA Fail

Related Articles

Brand Stories

Pantone Colors by Decade: The 2000s, 2010s, and 2020s Compared

Feb 01, 2026
Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026