#3F4053

#3F4053

Color Values

HEX

#3F4053

RGB

63, 64, 83

HSL

237.0, 13.7%, 28.6%

HSV

237.0, 24.1%, 32.5%

CMYK

24.1%, 22.9%, 0.0%, 67.5%

OKLCH

0.3784 0.0323 282.4

Properties

Cool Dark Nearest: RAL 7015 Slate Grey

Color Harmonies

Complementary

#3F4053

#53523F

Analogous

#3F4A53

#483F53

#3F4053

Triadic

#3F4053

#533F40

#40533F

Split Complementary

#3F4053

#53483F

#4A533F

Tetradic

#3F4053

#533F4A

#53523F

#3F5348

Color Blindness Simulation

Original

#3F4053

Protanopia

#3F3F4E

Deuteranopia

#3F3F4D

Tritanopia

#3F4B4A

Achromatopsia

#414141

CSS Usage

background-color: #3F4053;
color: #3F4053;
border-color: #3F4053;
Nearest Tailwind: Gray 700 #374151

Tailwind Shades

50
#F6F7F8
100
#EBEBEF
200
#D6D7E0
300
#B9BACA
400
#9495AE
500
#6E7091
600
#585974
700
#46485D
800
#373848
900
#2A2B36
950
#1B1B22

Contrast Checker

Text on white

10.15:1

AA Pass AAA Pass

Text on black

2.07:1

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