#515C75

#515C75

Color Values

HEX

#515C75

RGB

81, 92, 117

HSL

221.7, 18.2%, 38.8%

HSV

221.7, 30.8%, 45.9%

CMYK

30.8%, 21.4%, 0.0%, 54.1%

OKLCH

0.4752 0.0429 266.2

Properties

Cool Dark Nearest: RAL 5014 Pigeon Blue

Color Harmonies

Complementary

#515C75

#756A51

Analogous

#516E75

#585175

#515C75

Triadic

#515C75

#75515C

#5C7551

Split Complementary

#515C75

#755851

#6E7551

Tetradic

#515C75

#75516E

#756A51

#517558

Color Blindness Simulation

Original

#515C75

Protanopia

#56566F

Deuteranopia

#55546D

Tritanopia

#526A69

Achromatopsia

#5B5B5B

CSS Usage

background-color: #515C75;
color: #515C75;
border-color: #515C75;
Nearest Tailwind: Slate 600 #475569

Tailwind Shades

50
#F6F7F9
100
#EAECF0
200
#D5D9E2
300
#B7BDCD
400
#8F9AB2
500
#687697
600
#535F79
700
#434C60
800
#343B4B
900
#292D38
950
#1A1D24

Contrast Checker

Text on white

6.69:1

AA Pass AAA Fail

Text on black

3.14:1

AA Fail 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