#515B55

#515B55

Color Values

HEX

#515B55

RGB

81, 91, 85

HSL

144.0, 5.8%, 33.7%

HSV

144.0, 11.0%, 35.7%

CMYK

11.0%, 0.0%, 6.6%, 64.3%

OKLCH

0.4605 0.0158 159.4

Properties

Cool Dark Nearest: RAL 7012 Basalt Grey

Color Harmonies

Complementary

#515B55

#5B5157

Analogous

#525B51

#515B5A

#515B55

Triadic

#515B55

#55515B

#5B5551

Split Complementary

#515B55

#5A515B

#5B5152

Tetradic

#515B55

#51525B

#5B5157

#5B5A51

Color Blindness Simulation

Original

#515B55

Protanopia

#555556

Deuteranopia

#555457

Tritanopia

#525858

Achromatopsia

#585858

CSS Usage

background-color: #515B55;
color: #515B55;
border-color: #515B55;
Nearest Tailwind: Neutral 600 #525252

Tailwind Shades

50
#F7F8F7
100
#ECEEED
200
#D9DDDB
300
#BEC5C1
400
#9BA6A0
500
#78877E
600
#606C65
700
#4D5651
800
#3C433F
900
#2E3330
950
#1D201E

Contrast Checker

Text on white

7.05:1

AA Pass AAA Pass

Text on black

2.98:1

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