#51BACC

#51BACC

Color Values

HEX

#51BACC

RGB

81, 186, 204

HSL

188.8, 54.7%, 55.9%

HSV

188.8, 60.3%, 80.0%

CMYK

60.3%, 8.8%, 0.0%, 20.0%

OKLCH

0.7346 0.0991 210.5

Properties

Cool Light Nearest: NCS S 0530-B40G Aqua

Color Harmonies

Complementary

#51BACC

#CC6351

Analogous

#51CCA1

#517DCC

#51BACC

Triadic

#51BACC

#CC51BA

#BACC51

Split Complementary

#51BACC

#CC517D

#CCA151

Tetradic

#51BACC

#A151CC

#CC6351

#7DCC51

Color Blindness Simulation

Original

#51BACC

Protanopia

#7E7FC8

Deuteranopia

#7870C7

Tritanopia

#56C4C3

Achromatopsia

#A5A5A5

CSS Usage

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

Tailwind Shades

50
#F4FAFB
100
#E5F3F5
200
#C8E9EF
300
#A0D9E3
400
#6DC5D4
500
#3AB1C5
600
#2E8D9E
700
#25717E
800
#1D5863
900
#194148
950
#10292E

Contrast Checker

Text on white

2.27:1

AA Fail AAA Fail

Text on black

9.25:1

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