#796776

CSS

:root {
  --sakura-night: #796776;
  --sakura-night-rgb: 121 103 118;
  --sakura-night-oklch: oklch(0.536 0.032 331.6);
}

.element {
  color: var(--sakura-night);
  background-color: hsl(310 8% 44%);
  border-color: oklch(0.536 0.032 331.6);
}

Tailwind CSS v4

@theme {
  --color-sakura-night: #796776;
  --color-sakura-night-50: #fbf2f9;
  --color-sakura-night-100: #efe4ec;
  --color-sakura-night-200: #ddcfda;
  --color-sakura-night-300: #c2b2be;
  --color-sakura-night-400: #aa98a7;
  --color-sakura-night-500: #937f90;
  --color-sakura-night-600: #7d6b7a;
  --color-sakura-night-700: #645661;
  --color-sakura-night-800: #493f48;
  --color-sakura-night-900: #332b32;
  --color-sakura-night-950: #1e181e;
}

SCSS

$sakura-night: #796776;
$sakura-night-rgb: 121, 103, 118;
$sakura-night-light: mix(#fff, $sakura-night, 20%);
$sakura-night-dark: mix(#000, $sakura-night, 20%);

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