#66BDFD

#66BDFD

Color Values

HEX

#66BDFD

RGB

102, 189, 253

HSL

205.4, 97.4%, 69.6%

HSV

205.4, 59.7%, 99.2%

CMYK

59.7%, 25.3%, 0.0%, 0.8%

OKLCH

0.7699 0.1248 242.6

Properties

Cool Light Nearest: steelblue 1

Color Harmonies

Complementary

#66BDFD

#FDA666

Analogous

#66FDF1

#6672FD

#66BDFD

Triadic

#66BDFD

#FD66BD

#BDFD66

Split Complementary

#66BDFD

#FD6672

#FDF166

Tetradic

#66BDFD

#F166FD

#FDA666

#72FD66

Color Blindness Simulation

Original

#66BDFD

Protanopia

#8C8CEE

Deuteranopia

#8780EA

Tritanopia

#6AE1DF

Achromatopsia

#AFAFAF

CSS Usage

background-color: #66BDFD;
color: #66BDFD;
border-color: #66BDFD;
Nearest Tailwind: Sky 400 #38BDF8

Tailwind Shades

50
#F1F8FE
100
#DEEFFC
200
#B9E1FE
300
#86CBFD
400
#45AFFD
500
#0393FC
600
#0375C9
700
#025EA1
800
#02497E
900
#06375B
950
#042339

Contrast Checker

Text on white

2.05:1

AA Fail AAA Fail

Text on black

10.26:1

AA Pass AAA Pass

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