#66D5DF

#66D5DF

Color Values

HEX

#66D5DF

RGB

102, 213, 223

HSL

185.0, 65.4%, 63.7%

HSV

185.0, 54.3%, 87.5%

CMYK

54.3%, 4.5%, 0.0%, 12.5%

OKLCH

0.8119 0.1021 203.3

Properties

Cool Light Nearest: Sky Blue

Color Harmonies

Complementary

#66D5DF

#DF7066

Analogous

#66DFAD

#6698DF

#66D5DF

Triadic

#66D5DF

#DF66D5

#D5DF66

Split Complementary

#66D5DF

#DF6698

#DFAD66

Tetradic

#66D5DF

#AD66DF

#DF7066

#98DF66

Color Blindness Simulation

Original

#66D5DF

Protanopia

#9697DD

Deuteranopia

#9087DC

Tritanopia

#6CDBDA

Achromatopsia

#BEBEBE

CSS Usage

background-color: #66D5DF;
color: #66D5DF;
border-color: #66D5DF;
Nearest Tailwind: Cyan 300 #67E8F9

Tailwind Shades

50
#F3FBFC
100
#E3F5F7
200
#C4EFF3
300
#9AE3EA
400
#63D4DE
500
#2CC5D3
600
#239EA9
700
#1C7E87
800
#166269
900
#14484D
950
#0D2E31

Contrast Checker

Text on white

1.73:1

AA Fail AAA Fail

Text on black

12.15:1

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