#42C9D7

#42C9D7

Color Values

HEX

#42C9D7

RGB

66, 201, 215

HSL

185.6, 65.1%, 55.1%

HSV

185.6, 69.3%, 84.3%

CMYK

69.3%, 6.5%, 0.0%, 15.7%

OKLCH

0.77 0.1148 205.1

Properties

Cool Light Nearest: turquoise 3

Color Harmonies

Complementary

#42C9D7

#D75042

Analogous

#42D79A

#427FD7

#42C9D7

Triadic

#42C9D7

#D742C9

#C9D742

Split Complementary

#42C9D7

#D7427F

#D79A42

Tetradic

#42C9D7

#9A42D7

#D75042

#7FD742

Color Blindness Simulation

Original

#42C9D7

Protanopia

#7C7ED4

Deuteranopia

#756AD3

Tritanopia

#49D1D0

Achromatopsia

#ADADAD

CSS Usage

background-color: #42C9D7;
color: #42C9D7;
border-color: #42C9D7;
Nearest Tailwind: Cyan 400 #22D3EE

Tailwind Shades

50
#F3FBFC
100
#E3F5F7
200
#C4EEF3
300
#9AE2EA
400
#63D3DE
500
#2CC3D3
600
#249CA8
700
#1C7D87
800
#166269
900
#14484D
950
#0D2D31

Contrast Checker

Text on white

1.99:1

AA Fail AAA Fail

Text on black

10.57:1

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