#669FD5

#669FD5

Color Values

HEX

#669FD5

RGB

102, 159, 213

HSL

209.2, 56.9%, 61.8%

HSV

209.2, 52.1%, 83.5%

CMYK

52.1%, 25.4%, 0.0%, 16.5%

OKLCH

0.6851 0.1002 248.2

Properties

Cool Light Nearest: steelblue 3

Color Harmonies

Complementary

#669FD5

#D59C66

Analogous

#66D5D4

#6668D5

#669FD5

Triadic

#669FD5

#D5669F

#9FD566

Split Complementary

#669FD5

#D56668

#D5D466

Tetradic

#669FD5

#D466D5

#D59C66

#68D566

Color Blindness Simulation

Original

#669FD5

Protanopia

#7F7FC8

Deuteranopia

#7B77C5

Tritanopia

#69BEBB

Achromatopsia

#979797

CSS Usage

background-color: #669FD5;
color: #669FD5;
border-color: #669FD5;
Nearest Tailwind: Sky 500 #0EA5E9

Tailwind Shades

50
#F4F7FB
100
#E5EDF6
200
#C7DCF0
300
#9FC3E5
400
#6BA2D6
500
#3781C8
600
#2C68A0
700
#235380
800
#1B4164
900
#183149
950
#0F1F2E

Contrast Checker

Text on white

2.81:1

AA Fail AAA Fail

Text on black

7.49:1

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