#3F504A

#3F504A

Color Values

HEX

#3F504A

RGB

63, 80, 74

HSL

158.8, 11.9%, 28.0%

HSV

158.8, 21.2%, 31.4%

CMYK

21.2%, 0.0%, 7.5%, 68.6%

OKLCH

0.4147 0.0235 171.6

Properties

Cool Dark Nearest: RAL 7010 Tarpaulin Grey

Color Harmonies

Complementary

#3F504A

#503F45

Analogous

#3F5041

#3F4D50

#3F504A

Triadic

#3F504A

#4A3F50

#504A3F

Split Complementary

#3F504A

#503F4D

#50413F

Tetradic

#3F504A

#413F50

#503F45

#4D503F

Color Blindness Simulation

Original

#3F504A

Protanopia

#46474B

Deuteranopia

#45444C

Tritanopia

#404D4D

Achromatopsia

#4C4C4C

CSS Usage

background-color: #3F504A;
color: #3F504A;
border-color: #3F504A;
Nearest Tailwind: Neutral 600 #525252

Tailwind Shades

50
#F7F8F8
100
#EBEFEE
200
#D7E0DD
300
#BBC9C4
400
#95ACA4
500
#708F84
600
#5A726A
700
#485B54
800
#384742
900
#2B3632
950
#1B2220

Contrast Checker

Text on white

8.54:1

AA Pass AAA Pass

Text on black

2.46:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026