#3F347C

#3F347C

Color Values

HEX

#3F347C

RGB

63, 52, 124

HSL

249.2, 40.9%, 34.5%

HSV

249.2, 58.1%, 48.6%

CMYK

49.2%, 58.1%, 0.0%, 51.4%

OKLCH

0.3779 0.1175 286.3

Properties

Cool Dark Nearest: darkslateblue

Color Harmonies

Complementary

#3F347C

#717C34

Analogous

#344D7C

#63347C

#3F347C

Triadic

#3F347C

#7C3F34

#347C3F

Split Complementary

#3F347C

#7C6334

#4D7C34

Tetradic

#3F347C

#7C344D

#717C34

#347C63

Color Blindness Simulation

Original

#3F347C

Protanopia

#3A3A6B

Deuteranopia

#3B3C66

Tritanopia

#3E5D5A

Achromatopsia

#3C3C3C

CSS Usage

background-color: #3F347C;
color: #3F347C;
border-color: #3F347C;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F6F5FA
100
#E9E7F3
200
#D1CDEA
300
#B0A9DB
400
#867AC7
500
#5B4BB4
600
#493C90
700
#3A3073
800
#2E265A
900
#241F42
950
#17132A

Contrast Checker

Text on white

10.53:1

AA Pass AAA Pass

Text on black

1.99:1

AA Fail AAA Fail

Related Articles

Color Questions

What Is Pantone? The Universal Color Language

Feb 20, 2026
Color Questions

What Is Metamerism? Why Colors Look Different Under Different Lights

Feb 20, 2026
Color Questions

What Is Luminance? Brightness in Color Science

Feb 20, 2026