#99697A

CSS

:root {
  --never-forget: #99697a;
  --never-forget-rgb: 153 105 122;
  --never-forget-oklch: oklch(0.576 0.065 356.4);
}

.element {
  color: var(--never-forget);
  background-color: hsl(339 19% 51%);
  border-color: oklch(0.576 0.065 356.4);
}

Tailwind CSS v4

@theme {
  --color-never-forget: #99697a;
  --color-never-forget-50: #ffeef5;
  --color-never-forget-100: #fcdfe7;
  --color-never-forget-200: #edc9d4;
  --color-never-forget-300: #d5aab7;
  --color-never-forget-400: #bf8f9f;
  --color-never-forget-500: #aa7487;
  --color-never-forget-600: #8f6272;
  --color-never-forget-700: #734f5b;
  --color-never-forget-800: #553944;
  --color-never-forget-900: #3b272f;
  --color-never-forget-950: #25151b;
}

SCSS

$never-forget: #99697a;
$never-forget-rgb: 153, 105, 122;
$never-forget-light: mix(#fff, $never-forget, 20%);
$never-forget-dark: mix(#000, $never-forget, 20%);

.element {
  color: $never-forget;
  box-shadow: 0 0 0 2px rgba($never-forget, 0.35);
}