#3F3B57

#3F3B57

Color Values

HEX

#3F3B57

RGB

63, 59, 87

HSL

248.6, 19.2%, 28.6%

HSV

248.6, 32.2%, 34.1%

CMYK

27.6%, 32.2%, 0.0%, 65.9%

OKLCH

0.3686 0.0478 290.4

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#3F3B57

#53573B

Analogous

#3B4557

#4D3B57

#3F3B57

Triadic

#3F3B57

#573F3B

#3B573F

Split Complementary

#3F3B57

#574D3B

#45573B

Tetradic

#3F3B57

#573B45

#53573B

#3B574D

Color Blindness Simulation

Original

#3F3B57

Protanopia

#3D3D50

Deuteranopia

#3E3E4F

Tritanopia

#3F4B4A

Achromatopsia

#3E3E3E

CSS Usage

background-color: #3F3B57;
color: #3F3B57;
border-color: #3F3B57;
Nearest Tailwind: Slate 700 #334155

Tailwind Shades

50
#F6F6F9
100
#EBEAF0
200
#D6D4E2
300
#B9B6CE
400
#948FB3
500
#6E6798
600
#58527A
700
#464261
800
#37344C
900
#2A2839
950
#1B1924

Contrast Checker

Text on white

10.64:1

AA Pass AAA Pass

Text on black

1.97:1

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