#D78386

CSS

:root {
  --peaches-of-immortality: #d78386;
  --peaches-of-immortality-rgb: 215 131 134;
  --peaches-of-immortality-oklch: oklch(0.699 0.104 17.8);
}

.element {
  color: var(--peaches-of-immortality);
  background-color: hsl(358 51% 68%);
  border-color: oklch(0.699 0.104 17.8);
}

Tailwind CSS v4

@theme {
  --color-peaches-of-immortality: #d78386;
  --color-peaches-of-immortality-50: #ffeae9;
  --color-peaches-of-immortality-100: #ffdbda;
  --color-peaches-of-immortality-200: #fec3c2;
  --color-peaches-of-immortality-300: #e8a2a2;
  --color-peaches-of-immortality-400: #d58587;
  --color-peaches-of-immortality-500: #c1686c;
  --color-peaches-of-immortality-600: #a3585c;
  --color-peaches-of-immortality-700: #834649;
  --color-peaches-of-immortality-800: #613236;
  --color-peaches-of-immortality-900: #442225;
  --color-peaches-of-immortality-950: #2c1114;
}

SCSS

$peaches-of-immortality: #d78386;
$peaches-of-immortality-rgb: 215, 131, 134;
$peaches-of-immortality-light: mix(#fff, $peaches-of-immortality, 20%);
$peaches-of-immortality-dark: mix(#000, $peaches-of-immortality, 20%);

.element {
  color: $peaches-of-immortality;
  box-shadow: 0 0 0 2px rgba($peaches-of-immortality, 0.35);
}