#212828

#212828

Color Values

HEX

#212828

RGB

33, 40, 40

HSL

180.0, 9.6%, 14.3%

HSV

180.0, 17.5%, 15.7%

CMYK

17.5%, 0.0%, 0.0%, 84.3%

OKLCH

0.27 0.0099 196.6

Properties

Cool Dark Nearest: RAL 7021 Black Grey

Color Harmonies

Complementary

#212828

#282121

Analogous

#212824

#212428

#212828

Triadic

#212828

#282128

#282821

Split Complementary

#212828

#282124

#282421

Tetradic

#212828

#242128

#282121

#242821

Color Blindness Simulation

Original

#212828

Protanopia

#242428

Deuteranopia

#242328

Tritanopia

#212828

Achromatopsia

#272727

CSS Usage

background-color: #212828;
color: #212828;
border-color: #212828;
Nearest Tailwind: Neutral 800 #262626

Tailwind Shades

50
#F7F8F8
100
#ECEFEF
200
#D8DFDF
300
#BCC8C8
400
#98AAAA
500
#738C8C
600
#5C7070
700
#4A5959
800
#3A4646
900
#2C3535
950
#1C2121

Contrast Checker

Text on white

15.01:1

AA Pass AAA Pass

Text on black

1.4:1

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