#515758

#515758

Color Values

HEX

#515758

RGB

81, 87, 88

HSL

188.6, 4.1%, 33.1%

HSV

188.6, 8.0%, 34.5%

CMYK

8.0%, 1.1%, 0.0%, 65.5%

OKLCH

0.4518 0.0078 208.8

Properties

Cool Dark Nearest: RAL 7043 Traffic Grey B

Color Harmonies

Complementary

#515758

#585251

Analogous

#515855

#515358

#515758

Triadic

#515758

#585157

#575851

Split Complementary

#515758

#585153

#585551

Tetradic

#515758

#555158

#585251

#535851

Color Blindness Simulation

Original

#515758

Protanopia

#545458

Deuteranopia

#535358

Tritanopia

#515858

Achromatopsia

#565656

CSS Usage

background-color: #515758;
color: #515758;
border-color: #515758;
Nearest Tailwind: Neutral 600 #525252

Tailwind Shades

50
#F7F8F8
100
#EDEEEE
200
#DADCDD
300
#BFC4C4
400
#9DA3A5
500
#7A8385
600
#62696A
700
#4E5455
800
#3D4242
900
#2F3232
950
#1D1F20

Contrast Checker

Text on white

7.36:1

AA Pass AAA Pass

Text on black

2.85:1

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