#51C1CC

#51C1CC

Color Values

HEX

#51C1CC

RGB

81, 193, 204

HSL

185.4, 54.7%, 55.9%

HSV

185.4, 60.3%, 80.0%

CMYK

60.3%, 5.4%, 0.0%, 20.0%

OKLCH

0.7512 0.1017 204.2

Properties

Cool Light Nearest: NCS S 0530-B40G Aqua

Color Harmonies

Complementary

#51C1CC

#CC5C51

Analogous

#51CC9A

#5183CC

#51C1CC

Triadic

#51C1CC

#CC51C1

#C1CC51

Split Complementary

#51C1CC

#CC5183

#CC9A51

Tetradic

#51C1CC

#9A51CC

#CC5C51

#83CC51

Color Blindness Simulation

Original

#51C1CC

Protanopia

#8282C9

Deuteranopia

#7B73C9

Tritanopia

#57C7C7

Achromatopsia

#AAAAAA

CSS Usage

background-color: #51C1CC;
color: #51C1CC;
border-color: #51C1CC;
Nearest Tailwind: Cyan 500 #06B6D4

Tailwind Shades

50
#F4FAFB
100
#E5F4F5
200
#C8EBEF
300
#A0DDE3
400
#6DCBD4
500
#3AB9C5
600
#2E949E
700
#25767E
800
#1D5C63
900
#194448
950
#102B2E

Contrast Checker

Text on white

2.13:1

AA Fail AAA Fail

Text on black

9.85:1

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