#21201B

#21201B

Color Values

HEX

#21201B

RGB

33, 32, 27

HSL

50.0, 10.0%, 11.8%

HSV

50.0, 18.2%, 12.9%

CMYK

0.0%, 3.0%, 18.2%, 87.1%

OKLCH

0.2428 0.0094 97.7

Properties

Warm Dark Nearest: RAL 6022 Olive Drab

Color Harmonies

Complementary

#21201B

#1B1C21

Analogous

#211D1B

#1F211B

#21201B

Triadic

#21201B

#1B2120

#201B21

Split Complementary

#21201B

#1B1F21

#1D1B21

Tetradic

#21201B

#1B211D

#1B1C21

#211B1F

Color Blindness Simulation

Original

#21201B

Protanopia

#21211C

Deuteranopia

#21211C

Tritanopia

#211D1D

Achromatopsia

#202020

CSS Usage

background-color: #21201B;
color: #21201B;
border-color: #21201B;
Nearest Tailwind: Stone 900 #1C1917

Tailwind Shades

50
#F8F8F7
100
#EFEEEC
200
#DFDED8
300
#C8C6BC
400
#AAA797
500
#8C8873
600
#706D5C
700
#5A5749
800
#464439
900
#35332C
950
#21201C

Contrast Checker

Text on white

16.32:1

AA Pass AAA Pass

Text on black

1.29:1

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