#2166AA

#2166AA

Color Values

HEX

#2166AA

RGB

33, 102, 170

HSL

209.8, 67.5%, 39.8%

HSV

209.8, 80.6%, 66.7%

CMYK

80.6%, 40.0%, 0.0%, 33.3%

OKLCH

0.5034 0.1276 251.8

Properties

Cool Dark Nearest: RAL 5015 Sky Blue

Color Harmonies

Complementary

#2166AA

#AA6521

Analogous

#21AAAA

#2121AA

#2166AA

Triadic

#2166AA

#AA2166

#66AA21

Split Complementary

#2166AA

#AA2121

#AAAA21

Tetradic

#2166AA

#AA21AA

#AA6521

#21AA21

Color Blindness Simulation

Original

#2166AA

Protanopia

#3F3F9A

Deuteranopia

#3B3696

Tritanopia

#248D8A

Achromatopsia

#5C5C5C

CSS Usage

background-color: #2166AA;
color: #2166AA;
border-color: #2166AA;
Nearest Tailwind: Sky 700 #0369A1

Tailwind Shades

50
#F3F7FC
100
#E3EDF7
200
#C3DBF3
300
#98C2EB
400
#61A1E0
500
#2980D6
600
#2166AB
700
#1B5289
800
#15406B
900
#13314E
950
#0C1F31

Contrast Checker

Text on white

5.92:1

AA Pass AAA Fail

Text on black

3.55:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026