#3F727C

#3F727C

Color Values

HEX

#3F727C

RGB

63, 114, 124

HSL

189.8, 32.6%, 36.7%

HSV

189.8, 49.2%, 48.6%

CMYK

49.2%, 8.1%, 0.0%, 51.4%

OKLCH

0.5204 0.0569 211.7

Properties

Cool Dark Nearest: RAL 5021 Water Blue

Color Harmonies

Complementary

#3F727C

#7C493F

Analogous

#3F7C68

#3F547C

#3F727C

Triadic

#3F727C

#7C3F72

#727C3F

Split Complementary

#3F727C

#7C3F54

#7C683F

Tetradic

#3F727C

#683F7C

#7C493F

#547C3F

Color Blindness Simulation

Original

#3F727C

Protanopia

#55567A

Deuteranopia

#524E79

Tritanopia

#427877

Achromatopsia

#686868

CSS Usage

background-color: #3F727C;
color: #3F727C;
border-color: #3F727C;
Nearest Tailwind: Cyan 800 #155E75

Tailwind Shades

50
#F5F9F9
100
#E8F0F2
200
#D0E3E7
300
#AECFD6
400
#82B5BF
500
#569BA9
600
#457C87
700
#37646C
800
#2B4E55
900
#223A3F
950
#162528

Contrast Checker

Text on white

5.37:1

AA Pass AAA Fail

Text on black

3.91:1

AA Fail AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026