#289EB0

#289EB0

Color Values

HEX

#289EB0

RGB

40, 158, 176

HSL

187,9, 63,0%, 42,4%

HSV

187,9, 77,3%, 69,0%

CMYK

77,3%, 10,2%, 0,0%, 31,0%

OKLCH

0,6446 0,1021 210,3

Properties

Cool Light Nearest: NCS S 1050-B20G Cyan

Color Harmonies

Complementary

#289EB0

#B03A28

Analogous

#28B07E

#285AB0

#289EB0

Triadic

#289EB0

#B0289E

#9EB028

Split Complementary

#289EB0

#B0285A

#B07E28

Tetradic

#289EB0

#7E28B0

#B03A28

#5AB028

Color Blindness Simulation

Original

#289EB0

Protanopia

#5B5CAC

Deuteranopia

#544BAB

Tritanopia

#2EA8A7

Achromatopsia

#868686

CSS Usage

background-color: #289EB0;
color: #289EB0;
border-color: #289EB0;
Nearest Tailwind: Cyan 600 #0891B2

Tailwind Shades

50
#F3FAFB
100
#E4F4F7
200
#C5ECF2
300
#9BDEE8
400
#65CCDC
500
#2FBBD0
600
#2695A6
700
#1E7785
800
#185D68
900
#15454C
950
#0D2B30

Contrast Checker

Text on white

3,18:1

AA Fail AAA Fail

Text on black

6,61:1

AA Pass AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Фев 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Фев 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Фев 19, 2026