#1B191C

#1B191C

Color Values

HEX

#1B191C

RGB

27, 25, 28

HSL

280.0, 5.7%, 10.4%

HSV

280.0, 10.7%, 11.0%

CMYK

3.6%, 10.7%, 0.0%, 89.0%

OKLCH

0.217 0.0065 314.7

Properties

Cool Dark Nearest: RAL 5004 Black Blue

Color Harmonies

Complementary

#1B191C

#1A1C19

Analogous

#1A191C

#1C191C

#1B191C

Triadic

#1B191C

#1C1B19

#191C1B

Split Complementary

#1B191C

#1C1C19

#191C1A

Tetradic

#1B191C

#1C1A19

#1A1C19

#191C1C

Color Blindness Simulation

Original

#1B191C

Protanopia

#1A1A1B

Deuteranopia

#1A1A1B

Tritanopia

#1B1B1B

Achromatopsia

#1A1A1A

CSS Usage

background-color: #1B191C;
color: #1B191C;
border-color: #1B191C;
Nearest Tailwind: Zinc 900 #18181B

Tailwind Shades

50
#F7F7F8
100
#EDECEE
200
#DCD9DD
300
#C3BEC5
400
#A29BA6
500
#827887
600
#68606C
700
#534D56
800
#413C43
900
#312E33
950
#1F1D20

Contrast Checker

Text on white

17.46:1

AA Pass AAA Pass

Text on black

1.2:1

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