#1D1427

CSS

:root {
  --shot-in-the-dark: #1d1427;
  --shot-in-the-dark-rgb: 29 20 39;
  --shot-in-the-dark-oklch: oklch(0.212 0.038 305.1);
}

.element {
  color: var(--shot-in-the-dark);
  background-color: hsl(268 32% 12%);
  border-color: oklch(0.212 0.038 305.1);
}

Tailwind CSS v4

@theme {
  --color-shot-in-the-dark: #1d1427;
  --color-shot-in-the-dark-50: #f8f2fe;
  --color-shot-in-the-dark-100: #ebe5f2;
  --color-shot-in-the-dark-200: #d8d0e1;
  --color-shot-in-the-dark-300: #bcb3c7;
  --color-shot-in-the-dark-400: #a499b1;
  --color-shot-in-the-dark-500: #8c809b;
  --color-shot-in-the-dark-600: #766c83;
  --color-shot-in-the-dark-700: #5f5769;
  --color-shot-in-the-dark-800: #453f4e;
  --color-shot-in-the-dark-900: #302c36;
  --color-shot-in-the-dark-950: #1c1921;
}

SCSS

$shot-in-the-dark: #1d1427;
$shot-in-the-dark-rgb: 29, 20, 39;
$shot-in-the-dark-light: mix(#fff, $shot-in-the-dark, 20%);
$shot-in-the-dark-dark: mix(#000, $shot-in-the-dark, 20%);

.element {
  color: $shot-in-the-dark;
  box-shadow: 0 0 0 2px rgba($shot-in-the-dark, 0.35);
}