#517F9C

#517F9C

Color Values

HEX

#517F9C

RGB

81, 127, 156

HSL

203.2, 31.6%, 46.5%

HSV

203.2, 48.1%, 61.2%

CMYK

48.1%, 18.6%, 0.0%, 38.8%

OKLCH

0.575 0.0674 237.3

Properties

Cool Light Nearest: skyblue 4

Color Harmonies

Complementary

#517F9C

#9C6E51

Analogous

#519C94

#515A9C

#517F9C

Triadic

#517F9C

#9C517F

#7F9C51

Split Complementary

#517F9C

#9C515A

#9C9451

Tetradic

#517F9C

#94519C

#9C6E51

#5A9C51

Color Blindness Simulation

Original

#517F9C

Protanopia

#656595

Deuteranopia

#625F93

Tritanopia

#538F8E

Achromatopsia

#777777

CSS Usage

background-color: #517F9C;
color: #517F9C;
border-color: #517F9C;
Nearest Tailwind: Slate 500 #64748B

Tailwind Shades

50
#F5F8F9
100
#E8EEF2
200
#D0DEE7
300
#AEC6D5
400
#83A7BE
500
#5789A8
600
#466D86
700
#38576B
800
#2C4454
900
#23343E
950
#162127

Contrast Checker

Text on white

4.32:1

AA Fail AAA Fail

Text on black

4.87:1

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