#166BE9

#166BE9

Color Values

HEX

#166BE9

RGB

22, 107, 233

HSL

215.8, 82.7%, 50.0%

HSV

215.8, 90.6%, 91.4%

CMYK

90.6%, 54.1%, 0.0%, 8.6%

OKLCH

0.5573 0.2058 259.5

Properties

Cool Dark Nearest: royalblue 2

Color Harmonies

Complementary

#166BE9

#E99416

Analogous

#16D5E9

#2A16E9

#166BE9

Triadic

#166BE9

#E9166B

#6BE916

Split Complementary

#166BE9

#E92A16

#D5E916

Tetradic

#166BE9

#E916D5

#E99416

#16E92A

Color Blindness Simulation

Original

#166BE9

Protanopia

#3B3CCB

Deuteranopia

#3630C3

Tritanopia

#1AB2AD

Achromatopsia

#626262

CSS Usage

background-color: #166BE9;
color: #166BE9;
border-color: #166BE9;
Nearest Tailwind: Blue 600 #2563EB

Tailwind Shades

50
#F2F6FD
100
#E1EBFA
200
#BED6F9
300
#8FB8F4
400
#5392EF
500
#166BE9
600
#1256BA
700
#0E4595
800
#0B3674
900
#0C2955
950
#081A35

Contrast Checker

Text on white

4.87:1

AA Pass AAA Fail

Text on black

4.31:1

AA Fail AAA Fail

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