#51828B

#51828B

Color Values

HEX

#51828B

RGB

81, 130, 139

HSL

189.3, 26.4%, 43.1%

HSV

189.3, 41.7%, 54.5%

CMYK

41.7%, 6.5%, 0.0%, 45.5%

OKLCH

0.5752 0.0546 210.4

Properties

Cool Light Nearest: cadetblue 4

Color Harmonies

Complementary

#51828B

#8B5A51

Analogous

#518B77

#51658B

#51828B

Triadic

#51828B

#8B5182

#828B51

Split Complementary

#51828B

#8B5165

#8B7751

Tetradic

#51828B

#77518B

#8B5A51

#658B51

Color Blindness Simulation

Original

#51828B

Protanopia

#666789

Deuteranopia

#636088

Tritanopia

#538787

Achromatopsia

#787878

CSS Usage

background-color: #51828B;
color: #51828B;
border-color: #51828B;
Nearest Tailwind: Cyan 700 #0E7490

Tailwind Shades

50
#F6F9F9
100
#E9F0F1
200
#D2E2E5
300
#B2CDD2
400
#88B2BA
500
#5E97A1
600
#4B7981
700
#3C6067
800
#2F4B51
900
#25383C
950
#172426

Contrast Checker

Text on white

4.27:1

AA Fail AAA Fail

Text on black

4.92:1

AA Pass AAA Fail

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