#1B2121

#1B2121

Color Values

HEX

#1B2121

RGB

27, 33, 33

HSL

180.0, 10.0%, 11.8%

HSV

180.0, 18.2%, 12.9%

CMYK

18.2%, 0.0%, 0.0%, 87.1%

OKLCH

0.2417 0.0088 196.6

Properties

Cool Dark Nearest: NCS S 9000-N Near Black

Color Harmonies

Complementary

#1B2121

#211B1B

Analogous

#1B211E

#1B1E21

#1B2121

Triadic

#1B2121

#211B21

#21211B

Split Complementary

#1B2121

#211B1E

#211E1B

Tetradic

#1B2121

#1E1B21

#211B1B

#1E211B

Color Blindness Simulation

Original

#1B2121

Protanopia

#1E1E21

Deuteranopia

#1D1D21

Tritanopia

#1B2121

Achromatopsia

#202020

CSS Usage

background-color: #1B2121;
color: #1B2121;
border-color: #1B2121;
Nearest Tailwind: Neutral 800 #262626

Tailwind Shades

50
#F7F8F8
100
#ECEFEF
200
#D8DFDF
300
#BCC8C8
400
#97AAAA
500
#738C8C
600
#5C7070
700
#495A5A
800
#394646
900
#2C3535
950
#1C2121

Contrast Checker

Text on white

16.33:1

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