#21B3AE

#21B3AE

Color Values

HEX

#21B3AE

RGB

33, 179, 174

HSL

177.9, 68.9%, 41.6%

HSV

177.9, 81.6%, 70.2%

CMYK

81.6%, 0.0%, 2.8%, 29.8%

OKLCH

0.6952 0.1139 191.2

Properties

Cool Light Nearest: lightseagreen

Color Harmonies

Complementary

#21B3AE

#B32126

Analogous

#21B365

#216FB3

#21B3AE

Triadic

#21B3AE

#AE21B3

#B3AE21

Split Complementary

#21B3AE

#B3216F

#B36521

Tetradic

#21B3AE

#6521B3

#B32126

#6FB321

Color Blindness Simulation

Original

#21B3AE

Protanopia

#6061AF

Deuteranopia

#584DB0

Tritanopia

#28B0B0

Achromatopsia

#949494

CSS Usage

background-color: #21B3AE;
color: #21B3AE;
border-color: #21B3AE;
Nearest Tailwind: Teal 500 #14B8A6

Tailwind Shades

50
#F3FCFC
100
#E3F8F7
200
#C3F4F2
300
#98ECE9
400
#60E2DD
500
#28D7D1
600
#20ACA7
700
#198A86
800
#146C69
900
#124E4C
950
#0C3230

Contrast Checker

Text on white

2.58:1

AA Fail AAA Fail

Text on black

8.12:1

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