#66EFFB

#66EFFB

Color Values

HEX

#66EFFB

RGB

102, 239, 251

HSL

184.8, 94.9%, 69.2%

HSV

184.8, 59.4%, 98.4%

CMYK

59.4%, 4.8%, 0.0%, 1.6%

OKLCH

0.8814 0.1193 203.2

Properties

Cool Light Nearest: turquoise 2

Color Harmonies

Complementary

#66EFFB

#FB7266

Analogous

#66FBBC

#66A5FB

#66EFFB

Triadic

#66EFFB

#FB66EF

#EFFB66

Split Complementary

#66EFFB

#FB66A5

#FBBC66

Tetradic

#66EFFB

#BC66FB

#FB7266

#A5FB66

Color Blindness Simulation

Original

#66EFFB

Protanopia

#A1A3F8

Deuteranopia

#998FF7

Tritanopia

#6DF6F5

Achromatopsia

#D3D3D3

CSS Usage

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

Tailwind Shades

50
#F1FDFE
100
#DFF9FC
200
#B9F8FD
300
#88F3FC
400
#47ECFA
500
#07E5F8
600
#05B7C7
700
#04939F
800
#03737C
900
#07535A
950
#043539

Contrast Checker

Text on white

1.37:1

AA Fail AAA Fail

Text on black

15.3:1

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