#B55955

CSS

:root {
  --dried-tomatoes: #b55955;
  --dried-tomatoes-rgb: 181 89 85;
  --dried-tomatoes-oklch: oklch(0.575 0.12 24.1);
}

.element {
  color: var(--dried-tomatoes);
  background-color: hsl(2 39% 52%);
  border-color: oklch(0.575 0.12 24.1);
}

Tailwind CSS v4

@theme {
  --color-dried-tomatoes: #b55955;
  --color-dried-tomatoes-50: #ffe9e3;
  --color-dried-tomatoes-100: #ffd9d3;
  --color-dried-tomatoes-200: #ffc1b9;
  --color-dried-tomatoes-300: #ef9f97;
  --color-dried-tomatoes-400: #dd817b;
  --color-dried-tomatoes-500: #c9625e;
  --color-dried-tomatoes-600: #aa5450;
  --color-dried-tomatoes-700: #894340;
  --color-dried-tomatoes-800: #66302f;
  --color-dried-tomatoes-900: #482020;
  --color-dried-tomatoes-950: #2e0f0f;
}

SCSS

$dried-tomatoes: #b55955;
$dried-tomatoes-rgb: 181, 89, 85;
$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);
}