#66B6FD

#66B6FD

Color Values

HEX

#66B6FD

RGB

102, 182, 253

HSL

208.2, 97.4%, 69.6%

HSV

208.2, 59.7%, 99.2%

CMYK

59.7%, 28.1%, 0.0%, 0.8%

OKLCH

0.7545 0.1297 247.3

Properties

Cool Light Nearest: steelblue 1

Color Harmonies

Complementary

#66B6FD

#FDAD66

Analogous

#66FDF8

#666BFD

#66B6FD

Triadic

#66B6FD

#FD66B6

#B6FD66

Split Complementary

#66B6FD

#FD666B

#FDF866

Tetradic

#66B6FD

#F866FD

#FDAD66

#6BFD66

Color Blindness Simulation

Original

#66B6FD

Protanopia

#8989EC

Deuteranopia

#847EE8

Tritanopia

#6ADEDB

Achromatopsia

#AAAAAA

CSS Usage

background-color: #66B6FD;
color: #66B6FD;
border-color: #66B6FD;
Nearest Tailwind: Sky 500 #0EA5E9

Tailwind Shades

50
#F1F8FE
100
#DEEEFC
200
#B9DDFE
300
#86C5FD
400
#45A6FD
500
#0387FC
600
#036CC9
700
#0256A1
800
#02437E
900
#06335B
950
#042039

Contrast Checker

Text on white

2.17:1

AA Fail AAA Fail

Text on black

9.67:1

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