#3F6971

#3F6971

Color Values

HEX

#3F6971

RGB

63, 105, 113

HSL

189,6, 28,4%, 34,5%

HSV

189,6, 44,2%, 44,3%

CMYK

44,2%, 7,1%, 0,0%, 55,7%

OKLCH

0,4933 0,0485 211,0

Properties

Cool Dark Nearest: RAL 5021 Water Blue

Color Harmonies

Complementary

#3F6971

#71473F

Analogous

#3F7160

#3F5071

#3F6971

Triadic

#3F6971

#713F69

#69713F

Split Complementary

#3F6971

#713F50

#71603F

Tetradic

#3F6971

#603F71

#71473F

#50713F

Color Blindness Simulation

Original

#3F6971

Protanopia

#51526F

Deuteranopia

#4F4C6F

Tritanopia

#416E6D

Achromatopsia

#616161

CSS Usage

background-color: #3F6971;
color: #3F6971;
border-color: #3F6971;
Nearest Tailwind: Cyan 800 #155E75

Tailwind Shades

50
#F6F9F9
100
#E9F0F1
200
#D1E2E5
300
#B0CED3
400
#86B3BB
500
#5B98A4
600
#497A83
700
#3A6169
800
#2E4C52
900
#24393D
950
#172426

Contrast Checker

Text on white

6,05:1

AA Pass AAA Fail

Text on black

3,47:1

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