#AD5F51

CSS

:root {
  --dried-tomatoes: #ad5f51;
  --dried-tomatoes-rgb: 173 95 81;
  --dried-tomatoes-oklch: oklch(0.573 0.104 31.3);
}

.element {
  color: var(--dried-tomatoes);
  background-color: hsl(9 36% 50%);
  border-color: oklch(0.573 0.104 31.3);
}

Tailwind CSS v4

@theme {
  --color-dried-tomatoes: #ad5f51;
  --color-dried-tomatoes-50: #ffebe2;
  --color-dried-tomatoes-100: #ffdcd2;
  --color-dried-tomatoes-200: #fec5b8;
  --color-dried-tomatoes-300: #e8a495;
  --color-dried-tomatoes-400: #d58778;
  --color-dried-tomatoes-500: #c16a5a;
  --color-dried-tomatoes-600: #a35a4d;
  --color-dried-tomatoes-700: #83483d;
  --color-dried-tomatoes-800: #62332d;
  --color-dried-tomatoes-900: #44231e;
  --color-dried-tomatoes-950: #2c120e;
}

SCSS

$dried-tomatoes: #ad5f51;
$dried-tomatoes-rgb: 173, 95, 81;
$dried-tomatoes-light: mix(#fff, $dried-tomatoes, 20%);
$dried-tomatoes-dark: mix(#000, $dried-tomatoes, 20%);

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