#D78484

CSS

:root {
  --peaches-of-immortality: #d78484;
  --peaches-of-immortality-rgb: 215 132 132;
  --peaches-of-immortality-oklch: oklch(0.701 0.103 20);
}

.element {
  color: var(--peaches-of-immortality);
  background-color: hsl(0 51% 68%);
  border-color: oklch(0.701 0.103 20);
}

Tailwind CSS v4

@theme {
  --color-peaches-of-immortality: #d78484;
  --color-peaches-of-immortality-50: #ffeae8;
  --color-peaches-of-immortality-100: #ffdbd9;
  --color-peaches-of-immortality-200: #fdc4c1;
  --color-peaches-of-immortality-300: #e7a3a0;
  --color-peaches-of-immortality-400: #d48585;
  --color-peaches-of-immortality-500: #c1686a;
  --color-peaches-of-immortality-600: #a3595a;
  --color-peaches-of-immortality-700: #834747;
  --color-peaches-of-immortality-800: #613335;
  --color-peaches-of-immortality-900: #442324;
  --color-peaches-of-immortality-950: #2c1113;
}

SCSS

$peaches-of-immortality: #d78484;
$peaches-of-immortality-rgb: 215, 132, 132;
$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);
}