#66ECFF

#66ECFF

Color Values

HEX

#66ECFF

RGB

102, 236, 255

HSL

187.5, 100.0%, 70.0%

HSV

187.5, 60.0%, 100.0%

CMYK

60.0%, 7.5%, 0.0%, 0.0%

OKLCH

0.876 0.1189 208.0

Properties

Cool Light Nearest: cadetblue 1

Color Harmonies

Complementary

#66ECFF

#FF7966

Analogous

#66FFC6

#669FFF

#66ECFF

Triadic

#66ECFF

#FF66EC

#ECFF66

Split Complementary

#66ECFF

#FF669F

#FFC666

Tetradic

#66ECFF

#C666FF

#FF7966

#9FFF66

Color Blindness Simulation

Original

#66ECFF

Protanopia

#A0A1FA

Deuteranopia

#988EF9

Tritanopia

#6DF7F6

Achromatopsia

#D1D1D1

CSS Usage

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

Tailwind Shades

50
#F1FCFE
100
#DEF9FC
200
#B8F6FF
300
#85F0FF
400
#42E7FF
500
#00DFFF
600
#00B3CC
700
#008FA3
800
#007080
900
#05515C
950
#03333A

Contrast Checker

Text on white

1.4:1

AA Fail AAA Fail

Text on black

15.01:1

AA Pass AAA Pass

Related Articles

Brand Stories

Pantone Colors by Decade: The 2000s, 2010s, and 2020s Compared

Feb 01, 2026
Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026