#D78387

CSS

:root {
  --peaches-of-immortality: #d78387;
  --peaches-of-immortality-rgb: 215 131 135;
  --peaches-of-immortality-oklch: oklch(0.7 0.104 17);
}

.element {
  color: var(--peaches-of-immortality);
  background-color: hsl(357 51% 68%);
  border-color: oklch(0.7 0.104 17);
}

Tailwind CSS v4

@theme {
  --color-peaches-of-immortality: #d78387;
  --color-peaches-of-immortality-50: #ffeae9;
  --color-peaches-of-immortality-100: #ffdbda;
  --color-peaches-of-immortality-200: #fec3c3;
  --color-peaches-of-immortality-300: #e8a2a2;
  --color-peaches-of-immortality-400: #d58588;
  --color-peaches-of-immortality-500: #c1686d;
  --color-peaches-of-immortality-600: #a3585d;
  --color-peaches-of-immortality-700: #83464a;
  --color-peaches-of-immortality-800: #613237;
  --color-peaches-of-immortality-900: #442225;
  --color-peaches-of-immortality-950: #2c1114;
}

SCSS

$peaches-of-immortality: #d78387;
$peaches-of-immortality-rgb: 215, 131, 135;
$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);
}