#21081B

#21081B

Color Values

HEX

#21081B

RGB

33, 8, 27

HSL

314.4, 61.0%, 8.0%

HSV

314.4, 75.8%, 12.9%

CMYK

0.0%, 75.8%, 18.2%, 87.1%

OKLCH

0.1861 0.0526 337.8

Properties

Warm Dark Nearest: RAL 5011 Steel Blue

Color Harmonies

Complementary

#21081B

#08210E

Analogous

#1A0821

#21080E

#21081B

Triadic

#21081B

#1B2108

#081B21

Split Complementary

#21081B

#0E2108

#08211A

Tetradic

#21081B

#211A08

#08210E

#080E21

Color Blindness Simulation

Original

#21081B

Protanopia

#161616

Deuteranopia

#181915

Tritanopia

#201312

Achromatopsia

#0F0F0F

CSS Usage

background-color: #21081B;
color: #21081B;
border-color: #21081B;
Nearest Tailwind: Slate 950 #020617

Tailwind Shades

50
#FBF3F9
100
#F6E4F2
200
#F1C6E7
300
#E79CD5
400
#DA67BF
500
#CD32A8
600
#A42886
700
#83206B
800
#671954
900
#4B163E
950
#2F0E27

Contrast Checker

Text on white

18.83:1

AA Pass AAA Pass

Text on black

1.12:1

AA Fail AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026