#3F3F88

#3F3F88

Color Values

HEX

#3F3F88

RGB

63, 63, 136

HSL

240.0, 36.7%, 39.0%

HSV

240.0, 53.7%, 53.3%

CMYK

53.7%, 53.7%, 0.0%, 46.7%

OKLCH

0.4084 0.1188 279.8

Properties

Cool Dark Nearest: darkslateblue

Color Harmonies

Complementary

#3F3F88

#88883F

Analogous

#3F6388

#633F88

#3F3F88

Triadic

#3F3F88

#883F3F

#3F883F

Split Complementary

#3F3F88

#88633F

#63883F

Tetradic

#3F3F88

#883F63

#88883F

#3F8863

Color Blindness Simulation

Original

#3F3F88

Protanopia

#3F3F76

Deuteranopia

#3F3F72

Tritanopia

#3F6865

Achromatopsia

#444444

CSS Usage

background-color: #3F3F88;
color: #3F3F88;
border-color: #3F3F88;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F5F5FA
100
#E8E8F3
200
#CECEE8
300
#ABABD8
400
#7E7EC3
500
#5151AE
600
#41418B
700
#343470
800
#282857
900
#202040
950
#141429

Contrast Checker

Text on white

9.22:1

AA Pass AAA Pass

Text on black

2.28:1

AA Fail AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026