#555659

#555659

Color Values

HEX

#555659

RGB

85, 86, 89

HSL

225.0, 2.3%, 34.1%

HSV

225.0, 4.5%, 34.9%

CMYK

4.5%, 3.4%, 0.0%, 65.1%

OKLCH

0.4533 0.005 271.3

Properties

Cool Dark Nearest: NCS S 7000-N Dark Grey

Color Harmonies

Complementary

#555659

#595855

Analogous

#555859

#565559

#555659

Triadic

#555659

#595556

#565955

Split Complementary

#555659

#595655

#585955

Tetradic

#555659

#595558

#595855

#555956

Color Blindness Simulation

Original

#555659

Protanopia

#555558

Deuteranopia

#555558

Tritanopia

#555858

Achromatopsia

#565656

CSS Usage

background-color: #555659;
color: #555659;
border-color: #555659;
Nearest Tailwind: Neutral 600 #525252

Tailwind Shades

50
#F7F7F7
100
#EDEDED
200
#DADBDC
300
#C0C1C3
400
#9EA0A3
500
#7D7E82
600
#646568
700
#505153
800
#3E3F41
900
#2F3031
950
#1E1E1F

Contrast Checker

Text on white

7.34:1

AA Pass AAA Pass

Text on black

2.86:1

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