#3F5E71

#3F5E71

Color Values

HEX

#3F5E71

RGB

63, 94, 113

HSL

202.8, 28.4%, 34.5%

HSV

202.8, 44.2%, 44.3%

CMYK

44.2%, 16.8%, 0.0%, 55.7%

OKLCH

0.4656 0.0478 236.1

Properties

Cool Dark Nearest: RAL 5025 Pearl Gentian Blue

Color Harmonies

Complementary

#3F5E71

#71523F

Analogous

#3F716B

#3F4571

#3F5E71

Triadic

#3F5E71

#713F5E

#5E713F

Split Complementary

#3F5E71

#713F45

#716B3F

Tetradic

#3F5E71

#6B3F71

#71523F

#45713F

Color Blindness Simulation

Original

#3F5E71

Protanopia

#4C4D6C

Deuteranopia

#4B486B

Tritanopia

#416968

Achromatopsia

#595959

CSS Usage

background-color: #3F5E71;
color: #3F5E71;
border-color: #3F5E71;
Nearest Tailwind: Slate 600 #475569

Tailwind Shades

50
#F6F8F9
100
#E9EEF1
200
#D1DEE5
300
#B0C6D3
400
#86A7BB
500
#5B88A4
600
#496D83
700
#3A5769
800
#2E4452
900
#24333D
950
#172026

Contrast Checker

Text on white

6.88:1

AA Pass AAA Fail

Text on black

3.05:1

AA Fail AAA Fail

Related Articles

Brand Stories

Pantone Colors by Decade: The 2000s, 2010s, and 2020s Compared

Feb 01, 2026
Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026