#3F4851

#3F4851

Color Values

HEX

#3F4851

RGB

63, 72, 81

HSL

210.0, 12.5%, 28.2%

HSV

210.0, 22.2%, 31.8%

CMYK

22.2%, 11.1%, 0.0%, 68.2%

OKLCH

0.397 0.0192 248.3

Properties

Cool Dark Nearest: RAL 7015 Slate Grey

Color Harmonies

Complementary

#3F4851

#51483F

Analogous

#3F5151

#3F3F51

#3F4851

Triadic

#3F4851

#513F48

#48513F

Split Complementary

#3F4851

#513F3F

#51513F

Tetradic

#3F4851

#513F51

#51483F

#3F513F

Color Blindness Simulation

Original

#3F4851

Protanopia

#43434F

Deuteranopia

#42424E

Tritanopia

#3F4D4D

Achromatopsia

#474747

CSS Usage

background-color: #3F4851;
color: #3F4851;
border-color: #3F4851;
Nearest Tailwind: Zinc 700 #3F3F46

Tailwind Shades

50
#F7F7F8
100
#EBEDEF
200
#D7DBE0
300
#BAC2C9
400
#95A1AC
500
#70808F
600
#596673
700
#47525C
800
#384048
900
#2B3036
950
#1B1F22

Contrast Checker

Text on white

9.3:1

AA Pass AAA Pass

Text on black

2.26:1

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