#12151C

#12151C

Color Values

HEX

#12151C

RGB

18, 21, 28

HSL

222,0, 21,7%, 9,0%

HSV

222,0, 35,7%, 11,0%

CMYK

35,7%, 25,0%, 0,0%, 89,0%

OKLCH

0,1959 0,0149 266,8

Properties

Cool Dark Nearest: RAL 5004 Black Blue

Color Harmonies

Complementary

#12151C

#1C1912

Analogous

#121A1C

#14121C

#12151C

Triadic

#12151C

#1C1215

#151C12

Split Complementary

#12151C

#1C1412

#1A1C12

Tetradic

#12151C

#1C121A

#1C1912

#121C14

Color Blindness Simulation

Original

#12151C

Protanopia

#13131A

Deuteranopia

#13131A

Tritanopia

#121919

Achromatopsia

#151515

CSS Usage

background-color: #12151C;
color: #12151C;
border-color: #12151C;
Nearest Tailwind: Zinc 900 #18181B

Tailwind Shades

50
#F6F7F9
100
#EAECF0
200
#D4D8E3
300
#B5BCCF
400
#8C98B5
500
#64749B
600
#505D7C
700
#404B63
800
#323A4E
900
#272D3A
950
#191C25

Contrast Checker

Text on white

18,26:1

AA Pass AAA Pass

Text on black

1,15:1

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