#3F5156

#3F5156

Color Values

HEX

#3F5156

RGB

63, 81, 86

HSL

193.0, 15.4%, 29.2%

HSV

193.0, 26.7%, 33.7%

CMYK

26.7%, 5.8%, 0.0%, 66.3%

OKLCH

0.4216 0.0239 216.5

Properties

Cool Dark Nearest: Outer Space

Color Harmonies

Complementary

#3F5156

#56443F

Analogous

#3F564F

#3F4556

#3F5156

Triadic

#3F5156

#563F51

#51563F

Split Complementary

#3F5156

#563F45

#564F3F

Tetradic

#3F5156

#4F3F56

#56443F

#45563F

Color Blindness Simulation

Original

#3F5156

Protanopia

#474755

Deuteranopia

#464454

Tritanopia

#405454

Achromatopsia

#4E4E4E

CSS Usage

background-color: #3F5156;
color: #3F5156;
border-color: #3F5156;
Nearest Tailwind: Gray 600 #4B5563

Tailwind Shades

50
#F6F8F8
100
#EBEEEF
200
#D6DEE1
300
#B8C7CB
400
#92A9AF
500
#6C8B93
600
#566F76
700
#45595E
800
#36454A
900
#2A3437
950
#1A2123

Contrast Checker

Text on white

8.32:1

AA Pass AAA Pass

Text on black

2.52:1

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