#289BAB

#289BAB

Color Values

HEX

#289BAB

RGB

40, 155, 171

HSL

187.3, 62.1%, 41.4%

HSV

187.3, 76.6%, 67.1%

CMYK

76.6%, 9.4%, 0.0%, 32.9%

OKLCH

0.6351 0.0997 208.9

Properties

Cool Light Nearest: NCS S 1050-B20G Cyan

Color Harmonies

Complementary

#289BAB

#AB3828

Analogous

#28AB7A

#285AAB

#289BAB

Triadic

#289BAB

#AB289B

#9BAB28

Split Complementary

#289BAB

#AB285A

#AB7A28

Tetradic

#289BAB

#7A28AB

#AB3828

#5AAB28

Color Blindness Simulation

Original

#289BAB

Protanopia

#5A5BA7

Deuteranopia

#534AA6

Tritanopia

#2EA4A3

Achromatopsia

#848484

CSS Usage

background-color: #289BAB;
color: #289BAB;
border-color: #289BAB;
Nearest Tailwind: Cyan 600 #0891B2

Tailwind Shades

50
#F3FAFB
100
#E4F4F7
200
#C5ECF1
300
#9CDFE8
400
#66CDDB
500
#30BBCF
600
#2796A5
700
#1F7884
800
#185E67
900
#15454C
950
#0D2C30

Contrast Checker

Text on white

3.3:1

AA Fail AAA Fail

Text on black

6.37:1

AA Pass AAA Fail

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