#21B6B3

#21B6B3

Color Values

HEX

#21B6B3

RGB

33, 182, 179

HSL

178.8, 69.3%, 42.2%

HSV

178.8, 81.9%, 71.4%

CMYK

81.9%, 0.0%, 1.6%, 28.6%

OKLCH

0.7045 0.1152 192.7

Properties

Cool Light Nearest: lightseagreen

Color Harmonies

Complementary

#21B6B3

#B62124

Analogous

#21B669

#216FB6

#21B6B3

Triadic

#21B6B3

#B321B6

#B6B321

Split Complementary

#21B6B3

#B6216F

#B66921

Tetradic

#21B6B3

#6921B6

#B62124

#6FB621

Color Blindness Simulation

Original

#21B6B3

Protanopia

#6263B4

Deuteranopia

#594EB4

Tritanopia

#28B4B4

Achromatopsia

#969696

CSS Usage

background-color: #21B6B3;
color: #21B6B3;
border-color: #21B6B3;
Nearest Tailwind: Teal 500 #14B8A6

Tailwind Shades

50
#F3FCFC
100
#E3F8F7
200
#C3F4F3
300
#97ECEB
400
#5FE2DF
500
#27D8D4
600
#1FADAA
700
#198A88
800
#146C6A
900
#124F4D
950
#0C3231

Contrast Checker

Text on white

2.5:1

AA Fail AAA Fail

Text on black

8.41:1

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