#289C99

#289C99

Color Values

HEX

#289C99

RGB

40, 156, 153

HSL

178.4, 59.2%, 38.4%

HSV

178.4, 74.4%, 61.2%

CMYK

74.4%, 0.0%, 1.9%, 38.8%

OKLCH

0.6308 0.0985 192.3

Properties

Cool Light Nearest: NCS S 1050-B50G Turquoise

Color Harmonies

Complementary

#289C99

#9C282B

Analogous

#289C5F

#28659C

#289C99

Triadic

#289C99

#99289C

#9C9928

Split Complementary

#289C99

#9C2865

#9C5F28

Tetradic

#289C99

#5F289C

#9C282B

#659C28

Color Blindness Simulation

Original

#289C99

Protanopia

#5A5B9A

Deuteranopia

#544B9A

Tritanopia

#2E9A9A

Achromatopsia

#838383

CSS Usage

background-color: #289C99;
color: #289C99;
border-color: #289C99;
Nearest Tailwind: Teal 600 #0D9488

Tailwind Shades

50
#F4FBFB
100
#E4F6F6
200
#C6F0EF
300
#9EE6E4
400
#69D9D6
500
#34CBC7
600
#2AA29F
700
#21827F
800
#1A6563
900
#174A49
950
#0E2F2E

Contrast Checker

Text on white

3.33:1

AA Fail AAA Fail

Text on black

6.31:1

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