#669FDD

#669FDD

Color Values

HEX

#669FDD

RGB

102, 159, 221

HSL

211.3, 63.6%, 63.3%

HSV

211.3, 53.8%, 86.7%

CMYK

53.8%, 28.1%, 0.0%, 13.3%

OKLCH

0.6889 0.1099 251.6

Properties

Cool Light Nearest: steelblue 3

Color Harmonies

Complementary

#669FDD

#DDA466

Analogous

#66DADD

#6866DD

#669FDD

Triadic

#669FDD

#DD669F

#9FDD66

Split Complementary

#669FDD

#DD6866

#DADD66

Tetradic

#669FDD

#DD66DA

#DDA466

#66DD68

Color Blindness Simulation

Original

#669FDD

Protanopia

#7F7FCE

Deuteranopia

#7B77CA

Tritanopia

#69C2C0

Achromatopsia

#979797

CSS Usage

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

Tailwind Shades

50
#F3F7FB
100
#E4EDF7
200
#C5DAF2
300
#9BC0E9
400
#659EDD
500
#2E7CD1
600
#2563A7
700
#1E4F85
800
#173E68
900
#152F4C
950
#0D1E30

Contrast Checker

Text on white

2.77:1

AA Fail AAA Fail

Text on black

7.57:1

AA Pass AAA Pass

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026