#080905

CSS

:root {
  --black-metal: #080905;
  --black-metal-rgb: 8 9 5;
  --black-metal-oklch: oklch(0.136 0.011 117.9);
}

.element {
  color: var(--black-metal);
  background-color: hsl(75 29% 3%);
  border-color: oklch(0.136 0.011 117.9);
}

Tailwind CSS v4

@theme {
  --color-black-metal: #080905;
  --color-black-metal-50: #f5f6f2;
  --color-black-metal-100: #e7e8e4;
  --color-black-metal-200: #d3d5d0;
  --color-black-metal-300: #b6b8b2;
  --color-black-metal-400: #9e9f98;
  --color-black-metal-500: #85877f;
  --color-black-metal-600: #71726c;
  --color-black-metal-700: #5a5b56;
  --color-black-metal-800: #42433f;
  --color-black-metal-900: #2e2e2b;
  --color-black-metal-950: #1a1b18;
}

SCSS

$black-metal: #080905;
$black-metal-rgb: 8, 9, 5;
$black-metal-light: mix(#fff, $black-metal, 20%);
$black-metal-dark: mix(#000, $black-metal, 20%);

.element {
  color: $black-metal;
  box-shadow: 0 0 0 2px rgba($black-metal, 0.35);
}