#1F181C

#1F181C

Color Values

HEX

#1F181C

RGB

31, 24, 28

HSL

325.7, 12.7%, 10.8%

HSV

325.7, 22.6%, 12.2%

CMYK

0.0%, 22.6%, 9.7%, 87.8%

OKLCH

0.2192 0.0133 343.0

Properties

Warm Dark Nearest: RAL 5004 Black Blue

Color Harmonies

Complementary

#1F181C

#181F1B

Analogous

#1F181F

#1F1819

#1F181C

Triadic

#1F181C

#1C1F18

#181C1F

Split Complementary

#1F181C

#191F18

#181F1F

Tetradic

#1F181C

#1F1F18

#181F1B

#18191F

Color Blindness Simulation

Original

#1F181C

Protanopia

#1C1C1B

Deuteranopia

#1C1D1B

Tritanopia

#1F1A1A

Achromatopsia

#1A1A1A

CSS Usage

background-color: #1F181C;
color: #1F181C;
border-color: #1F181C;
Nearest Tailwind: Zinc 900 #18181B

Tailwind Shades

50
#F8F7F7
100
#EFEBED
200
#E0D7DC
300
#CABAC3
400
#AD95A2
500
#906F82
600
#735968
700
#5C4753
800
#483841
900
#362B31
950
#221B1F

Contrast Checker

Text on white

17.42:1

AA Pass AAA Pass

Text on black

1.21:1

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