#515263

#515263

Color Values

HEX

#515263

RGB

81, 82, 99

HSL

236.7, 10.0%, 35.3%

HSV

236.7, 18.2%, 38.8%

CMYK

18.2%, 17.2%, 0.0%, 61.2%

OKLCH

0.4442 0.0278 282.5

Properties

Cool Dark Nearest: RAL 7015 Slate Grey

Color Harmonies

Complementary

#515263

#636251

Analogous

#515B63

#595163

#515263

Triadic

#515263

#635152

#526351

Split Complementary

#515263

#635951

#5B6351

Tetradic

#515263

#63515B

#636251

#516359

Color Blindness Simulation

Original

#515263

Protanopia

#51515F

Deuteranopia

#51515E

Tritanopia

#515C5B

Achromatopsia

#535353

CSS Usage

background-color: #515263;
color: #515263;
border-color: #515263;
Nearest Tailwind: Gray 600 #4B5563

Tailwind Shades

50
#F7F7F8
100
#ECECEF
200
#D8D8DF
300
#BCBCC8
400
#9798AA
500
#73748C
600
#5C5D70
700
#494A5A
800
#393A46
900
#2C2D35
950
#1C1C21

Contrast Checker

Text on white

7.67:1

AA Pass AAA Pass

Text on black

2.74:1

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