#1A0C1D

CSS

:root {
  --shot-in-the-dark: #1a0c1d;
  --shot-in-the-dark-rgb: 26 12 29;
  --shot-in-the-dark-oklch: oklch(0.183 0.039 320.4);
}

.element {
  color: var(--shot-in-the-dark);
  background-color: hsl(289 41% 8%);
  border-color: oklch(0.183 0.039 320.4);
}

Tailwind CSS v4

@theme {
  --color-shot-in-the-dark: #1a0c1d;
  --color-shot-in-the-dark-50: #fbf2fc;
  --color-shot-in-the-dark-100: #eee4f0;
  --color-shot-in-the-dark-200: #ddcfde;
  --color-shot-in-the-dark-300: #c1b1c4;
  --color-shot-in-the-dark-400: #a997ad;
  --color-shot-in-the-dark-500: #927e97;
  --color-shot-in-the-dark-600: #7c6b7f;
  --color-shot-in-the-dark-700: #635566;
  --color-shot-in-the-dark-800: #483e4b;
  --color-shot-in-the-dark-900: #322b34;
  --color-shot-in-the-dark-950: #1e1820;
}

SCSS

$shot-in-the-dark: #1a0c1d;
$shot-in-the-dark-rgb: 26, 12, 29;
$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);
}