#3FD9DE

#3FD9DE

Color Values

HEX

#3FD9DE

RGB

63, 217, 222

HSL

181.9, 70.7%, 55.9%

HSV

181.9, 71.6%, 87.1%

CMYK

71.6%, 2.3%, 0.0%, 12.9%

OKLCH

0.81 0.124 198.2

Properties

Cool Light Nearest: darkturquoise

Color Harmonies

Complementary

#3FD9DE

#DE443F

Analogous

#3FDE94

#3F8ADE

#3FD9DE

Triadic

#3FD9DE

#DE3FD9

#D9DE3F

Split Complementary

#3FD9DE

#DE3F8A

#DE943F

Tetradic

#3FD9DE

#943FDE

#DE443F

#8ADE3F

Color Blindness Simulation

Original

#3FD9DE

Protanopia

#8283DD

Deuteranopia

#796DDC

Tritanopia

#47DCDC

Achromatopsia

#B9B9B9

CSS Usage

background-color: #3FD9DE;
color: #3FD9DE;
border-color: #3FD9DE;
Nearest Tailwind: Cyan 300 #67E8F9

Tailwind Shades

50
#F3FCFC
100
#E2F7F8
200
#C2F3F5
300
#97EAED
400
#5EDFE3
500
#25D4DA
600
#1EAAAE
700
#18888B
800
#136A6D
900
#124D4F
950
#0B3132

Contrast Checker

Text on white

1.72:1

AA Fail AAA Fail

Text on black

12.19:1

AA Pass AAA Pass

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