#3F8F99

#3F8F99

Color Values

HEX

#3F8F99

RGB

63, 143, 153

HSL

186.7, 41.7%, 42.4%

HSV

186.7, 58.8%, 60.0%

CMYK

58.8%, 6.5%, 0.0%, 40.0%

OKLCH

0.6045 0.0788 206.4

Properties

Cool Light Nearest: RAL 5018 Turquoise Blue

Color Harmonies

Complementary

#3F8F99

#99493F

Analogous

#3F9976

#3F6299

#3F8F99

Triadic

#3F8F99

#993F8F

#8F993F

Split Complementary

#3F8F99

#993F62

#99763F

Tetradic

#3F8F99

#763F99

#99493F

#62993F

Color Blindness Simulation

Original

#3F8F99

Protanopia

#626297

Deuteranopia

#5D5796

Tritanopia

#439594

Achromatopsia

#7F7F7F

CSS Usage

background-color: #3F8F99;
color: #3F8F99;
border-color: #3F8F99;
Nearest Tailwind: Cyan 600 #0891B2

Tailwind Shades

50
#F5F9FA
100
#E7F2F3
200
#CCE7EA
300
#A8D6DB
400
#79BFC8
500
#4AA9B5
600
#3B8791
700
#306C74
800
#25545A
900
#1E3F43
950
#13282A

Contrast Checker

Text on white

3.75:1

AA Fail AAA Fail

Text on black

5.6:1

AA Pass 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