#515251

#515251

Color Values

HEX

#515251

RGB

81, 82, 81

HSL

120.0, 0.6%, 32.0%

HSV

120.0, 1.2%, 32.2%

CMYK

1.2%, 0.0%, 1.2%, 67.8%

OKLCH

0.4373 0.0021 145.5

Properties

Cool Dark Nearest: NCS S 7000-N Dark Grey

Color Harmonies

Complementary

#515251

#525152

Analogous

#525251

#515252

#515251

Triadic

#515251

#515152

#525151

Split Complementary

#515251

#525152

#525152

Tetradic

#515251

#515252

#525152

#525251

Color Blindness Simulation

Original

#515251

Protanopia

#515151

Deuteranopia

#515151

Tritanopia

#515151

Achromatopsia

#525252

CSS Usage

background-color: #515251;
color: #515251;
border-color: #515251;
Nearest Tailwind: Neutral 600 #525252

Tailwind Shades

50
#F7F7F7
100
#EDEDED
200
#DBDCDB
300
#C1C2C1
400
#A0A1A0
500
#7F807F
600
#656765
700
#515251
800
#3F403F
900
#303130
950
#1E1F1E

Contrast Checker

Text on white

7.85:1

AA Pass AAA Pass

Text on black

2.68:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026