#210818

#210818

Color Values

HEX

#210818

RGB

33, 8, 24

HSL

321.6, 61.0%, 8.0%

HSV

321.6, 75.8%, 12.9%

CMYK

0.0%, 75.8%, 27.3%, 87.1%

OKLCH

0.1844 0.0498 343.7

Properties

Warm Dark Nearest: RAL 5011 Steel Blue

Color Harmonies

Complementary

#210818

#082111

Analogous

#1D0821

#21080B

#210818

Triadic

#210818

#182108

#081821

Split Complementary

#210818

#0B2108

#08211D

Tetradic

#210818

#211D08

#082111

#080B21

Color Blindness Simulation

Original

#210818

Protanopia

#161614

Deuteranopia

#181913

Tritanopia

#201110

Achromatopsia

#0E0E0E

CSS Usage

background-color: #210818;
color: #210818;
border-color: #210818;
Nearest Tailwind: Slate 950 #020617

Tailwind Shades

50
#FBF3F8
100
#F6E4F0
200
#F1C6E1
300
#E79CCC
400
#DA67B1
500
#CD3295
600
#A42877
700
#832060
800
#67194B
900
#4B1638
950
#2F0E23

Contrast Checker

Text on white

18.87:1

AA Pass AAA Pass

Text on black

1.11:1

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