#66B1EB

#66B1EB

Color Values

HEX

#66B1EB

RGB

102, 177, 235

HSL

206.2, 76.9%, 66.1%

HSV

206.2, 56.6%, 92.2%

CMYK

56.6%, 24.7%, 0.0%, 7.8%

OKLCH

0.7351 0.1129 243.5

Properties

Cool Light Nearest: steelblue 2

Color Harmonies

Complementary

#66B1EB

#EBA066

Analogous

#66EBE3

#666EEB

#66B1EB

Triadic

#66B1EB

#EB66B1

#B1EB66

Split Complementary

#66B1EB

#EB666E

#EBE366

Tetradic

#66B1EB

#E366EB

#EBA066

#6EEB66

Color Blindness Simulation

Original

#66B1EB

Protanopia

#8687DD

Deuteranopia

#827CDA

Tritanopia

#6AD2CF

Achromatopsia

#A5A5A5

CSS Usage

background-color: #66B1EB;
color: #66B1EB;
border-color: #66B1EB;
Nearest Tailwind: Sky 400 #38BDF8

Tailwind Shades

50
#F2F8FC
100
#E1EFF9
200
#C0DFF7
300
#93C8F1
400
#58AAE9
500
#1D8CE2
600
#1870B4
700
#135A90
800
#0F4671
900
#0F3552
950
#092134

Contrast Checker

Text on white

2.32:1

AA Fail AAA Fail

Text on black

9.05:1

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