#515759

#515759

Color Values

HEX

#515759

RGB

81, 87, 89

HSL

195.0, 4.7%, 33.3%

HSV

195.0, 9.0%, 34.9%

CMYK

9.0%, 2.2%, 0.0%, 65.1%

OKLCH

0.4521 0.0083 219.7

Properties

Cool Dark Nearest: RAL 7043 Traffic Grey B

Color Harmonies

Complementary

#515759

#595351

Analogous

#515957

#515359

#515759

Triadic

#515759

#595157

#575951

Split Complementary

#515759

#595153

#595751

Tetradic

#515759

#575159

#595351

#535951

Color Blindness Simulation

Original

#515759

Protanopia

#545459

Deuteranopia

#535358

Tritanopia

#515858

Achromatopsia

#565656

CSS Usage

background-color: #515759;
color: #515759;
border-color: #515759;
Nearest Tailwind: Neutral 600 #525252

Tailwind Shades

50
#F7F8F8
100
#ECEEEE
200
#DADCDD
300
#BFC3C5
400
#9CA3A5
500
#7A8285
600
#61686B
700
#4E5455
800
#3D4143
900
#2E3132
950
#1D1F20

Contrast Checker

Text on white

7.35:1

AA Pass AAA Pass

Text on black

2.86:1

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