#517EB4

#517EB4

Color Values

HEX

#517EB4

RGB

81, 126, 180

HSL

212.7, 39.8%, 51.2%

HSV

212.7, 55.0%, 70.6%

CMYK

55.0%, 30.0%, 0.0%, 29.4%

OKLCH

0.5841 0.0972 253.8

Properties

Cool Light Nearest: steelblue

Color Harmonies

Complementary

#517EB4

#B48751

Analogous

#51B0B4

#5551B4

#517EB4

Triadic

#517EB4

#B4517E

#7EB451

Split Complementary

#517EB4

#B45551

#B0B451

Tetradic

#517EB4

#B451B0

#B48751

#51B455

Color Blindness Simulation

Original

#517EB4

Protanopia

#6465A7

Deuteranopia

#625EA4

Tritanopia

#539D9A

Achromatopsia

#787878

CSS Usage

background-color: #517EB4;
color: #517EB4;
border-color: #517EB4;
Nearest Tailwind: Sky 700 #0369A1

Tailwind Shades

50
#F5F7FA
100
#E7EDF3
200
#CDDAEA
300
#A9C0DA
400
#7B9DC6
500
#4D7BB2
600
#3D628F
700
#314F72
800
#263D59
900
#1F2F42
950
#141E2A

Contrast Checker

Text on white

4.21:1

AA Fail AAA Fail

Text on black

4.99:1

AA Pass AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026