#3F377F

#3F377F

Color Values

HEX

#3F377F

RGB

63, 55, 127

HSL

246.7, 39.6%, 35.7%

HSV

246.7, 56.7%, 49.8%

CMYK

50.4%, 56.7%, 0.0%, 50.2%

OKLCH

0.3859 0.1174 284.5

Properties

Cool Dark Nearest: darkslateblue

Color Harmonies

Complementary

#3F377F

#777F37

Analogous

#37537F

#63377F

#3F377F

Triadic

#3F377F

#7F3F37

#377F3F

Split Complementary

#3F377F

#7F6337

#537F37

Tetradic

#3F377F

#7F3753

#777F37

#377F63

Color Blindness Simulation

Original

#3F377F

Protanopia

#3C3B6E

Deuteranopia

#3C3D69

Tritanopia

#3F605D

Achromatopsia

#3E3E3E

CSS Usage

background-color: #3F377F;
color: #3F377F;
border-color: #3F377F;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F5F5FA
100
#E8E7F3
200
#D0CDE9
300
#AFAADA
400
#847BC6
500
#584DB2
600
#473E8E
700
#393172
800
#2C2759
900
#231F42
950
#16142A

Contrast Checker

Text on white

10.17:1

AA Pass AAA Pass

Text on black

2.06:1

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