#B55953

CSS

:root {
  --dried-tomatoes: #b55953;
  --dried-tomatoes-rgb: 181 89 83;
  --dried-tomatoes-oklch: oklch(0.574 0.121 25.4);
}

.element {
  color: var(--dried-tomatoes);
  background-color: hsl(4 40% 52%);
  border-color: oklch(0.574 0.121 25.4);
}

Tailwind CSS v4

@theme {
  --color-dried-tomatoes: #b55953;
  --color-dried-tomatoes-50: #ffe9e3;
  --color-dried-tomatoes-100: #ffd9d2;
  --color-dried-tomatoes-200: #ffc1b8;
  --color-dried-tomatoes-300: #efa096;
  --color-dried-tomatoes-400: #dd8179;
  --color-dried-tomatoes-500: #ca625c;
  --color-dried-tomatoes-600: #aa544e;
  --color-dried-tomatoes-700: #89433e;
  --color-dried-tomatoes-800: #66302e;
  --color-dried-tomatoes-900: #48201f;
  --color-dried-tomatoes-950: #2e0f0f;
}

SCSS

$dried-tomatoes: #b55953;
$dried-tomatoes-rgb: 181, 89, 83;
$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);
}