#517F8C

#517F8C

Color Values

HEX

#517F8C

RGB

81, 127, 140

HSL

193.2, 26.7%, 43.3%

HSV

193.2, 42.1%, 54.9%

CMYK

42.1%, 9.3%, 0.0%, 45.1%

OKLCH

0.5683 0.054 217.6

Properties

Cool Light Nearest: cadetblue 4

Color Harmonies

Complementary

#517F8C

#8C5E51

Analogous

#518C7B

#51618C

#517F8C

Triadic

#517F8C

#8C517F

#7F8C51

Split Complementary

#517F8C

#8C5161

#8C7B51

Tetradic

#517F8C

#7B518C

#8C5E51

#618C51

Color Blindness Simulation

Original

#517F8C

Protanopia

#656589

Deuteranopia

#625F88

Tritanopia

#538686

Achromatopsia

#767676

CSS Usage

background-color: #517F8C;
color: #517F8C;
border-color: #517F8C;
Nearest Tailwind: Slate 500 #64748B

Tailwind Shades

50
#F6F8F9
100
#E9EFF1
200
#D2E1E5
300
#B1CBD2
400
#87AFBA
500
#5D93A2
600
#4B7581
700
#3C5E67
800
#2F4951
900
#25373C
950
#172326

Contrast Checker

Text on white

4.41:1

AA Fail AAA Fail

Text on black

4.76:1

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