#42B4BB

#42B4BB

Color Values

HEX

#42B4BB

RGB

66, 180, 187

HSL

183.5, 47.8%, 49.6%

HSV

183.5, 64.7%, 73.3%

CMYK

64.7%, 3.7%, 0.0%, 26.7%

OKLCH

0.7092 0.101 200.9

Properties

Cool Light Nearest: Teal Blue

Color Harmonies

Complementary

#42B4BB

#BB4942

Analogous

#42BB86

#4277BB

#42B4BB

Triadic

#42B4BB

#BB42B4

#B4BB42

Split Complementary

#42B4BB

#BB4277

#BB8642

Tetradic

#42B4BB

#8642BB

#BB4942

#77BB42

Color Blindness Simulation

Original

#42B4BB

Protanopia

#7374B9

Deuteranopia

#6D64B9

Tritanopia

#48B8B8

Achromatopsia

#9C9C9C

CSS Usage

background-color: #42B4BB;
color: #42B4BB;
border-color: #42B4BB;
Nearest Tailwind: Cyan 500 #06B6D4

Tailwind Shades

50
#F4FAFA
100
#E6F4F4
200
#CAEAEC
300
#A5DCDF
400
#74C8CE
500
#43B5BC
600
#359197
700
#2B7479
800
#215B5E
900
#1C4345
950
#112A2C

Contrast Checker

Text on white

2.48:1

AA Fail AAA Fail

Text on black

8.48:1

AA Pass AAA Pass

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