#3F4750

#3F4750

Color Values

HEX

#3F4750

RGB

63, 71, 80

HSL

211.8, 11.9%, 28.0%

HSV

211.8, 21.2%, 31.4%

CMYK

21.2%, 11.2%, 0.0%, 68.6%

OKLCH

0.3941 0.0185 251.4

Properties

Cool Dark Nearest: RAL 7015 Slate Grey

Color Harmonies

Complementary

#3F4750

#50483F

Analogous

#3F4F50

#3F3F50

#3F4750

Triadic

#3F4750

#503F47

#47503F

Split Complementary

#3F4750

#503F3F

#4F503F

Tetradic

#3F4750

#503F4F

#50483F

#3F503F

Color Blindness Simulation

Original

#3F4750

Protanopia

#42434E

Deuteranopia

#42414D

Tritanopia

#3F4C4C

Achromatopsia

#464646

CSS Usage

background-color: #3F4750;
color: #3F4750;
border-color: #3F4750;
Nearest Tailwind: Zinc 700 #3F3F46

Tailwind Shades

50
#F7F7F8
100
#EBEDEF
200
#D7DBE0
300
#BBC1C9
400
#95A0AC
500
#707F8F
600
#5A6572
700
#48515B
800
#383F47
900
#2B3036
950
#1B1E22

Contrast Checker

Text on white

9.42:1

AA Pass AAA Pass

Text on black

2.23:1

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