#1A0F1E

CSS

:root {
  --shot-in-the-dark: #1a0f1e;
  --shot-in-the-dark-rgb: 26 15 30;
  --shot-in-the-dark-oklch: oklch(0.191 0.034 316.7);
}

.element {
  color: var(--shot-in-the-dark);
  background-color: hsl(284 33% 9%);
  border-color: oklch(0.191 0.034 316.7);
}

Tailwind CSS v4

@theme {
  --color-shot-in-the-dark: #1a0f1e;
  --color-shot-in-the-dark-50: #f9f2fb;
  --color-shot-in-the-dark-100: #ede4ef;
  --color-shot-in-the-dark-200: #dbd0de;
  --color-shot-in-the-dark-300: #bfb2c3;
  --color-shot-in-the-dark-400: #a799ac;
  --color-shot-in-the-dark-500: #8f8095;
  --color-shot-in-the-dark-600: #796c7e;
  --color-shot-in-the-dark-700: #615665;
  --color-shot-in-the-dark-800: #473f4b;
  --color-shot-in-the-dark-900: #312b34;
  --color-shot-in-the-dark-950: #1d191f;
}

SCSS

$shot-in-the-dark: #1a0f1e;
$shot-in-the-dark-rgb: 26, 15, 30;
$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);
}