#3F6663

#3F6663

Color Values

HEX

#3F6663

RGB

63, 102, 99

HSL

175.4, 23.6%, 32.4%

HSV

175.4, 38.2%, 40.0%

CMYK

38.2%, 0.0%, 2.9%, 60.0%

OKLCH

0.4803 0.0445 189.6

Properties

Cool Dark Nearest: darkslategrey

Color Harmonies

Complementary

#3F6663

#663F42

Analogous

#3F6650

#3F5666

#3F6663

Triadic

#3F6663

#633F66

#66633F

Split Complementary

#3F6663

#663F56

#66503F

Tetradic

#3F6663

#503F66

#663F42

#56663F

Color Blindness Simulation

Original

#3F6663

Protanopia

#505064

Deuteranopia

#4E4B64

Tritanopia

#416464

Achromatopsia

#5D5D5D

CSS Usage

background-color: #3F6663;
color: #3F6663;
border-color: #3F6663;
Nearest Tailwind: Teal 800 #115E59

Tailwind Shades

50
#F6F9F9
100
#EAF1F0
200
#D3E4E2
300
#B3D0CE
400
#8AB7B4
500
#619E99
600
#4E7E7A
700
#3E6562
800
#314F4C
900
#263B39
950
#182524

Contrast Checker

Text on white

6.38:1

AA Pass AAA Fail

Text on black

3.29:1

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