#A1655A

CSS

:root {
  --dried-tomatoes: #a1655a;
  --dried-tomatoes-rgb: 161 101 90;
  --dried-tomatoes-oklch: oklch(0.569 0.08 31);
}

.element {
  color: var(--dried-tomatoes);
  background-color: hsl(9 28% 49%);
  border-color: oklch(0.569 0.08 31);
}

Tailwind CSS v4

@theme {
  --color-dried-tomatoes: #a1655a;
  --color-dried-tomatoes-50: #ffeee7;
  --color-dried-tomatoes-100: #ffdfd7;
  --color-dried-tomatoes-200: #f5c9bf;
  --color-dried-tomatoes-300: #dda99d;
  --color-dried-tomatoes-400: #c98d82;
  --color-dried-tomatoes-500: #b57265;
  --color-dried-tomatoes-600: #996056;
  --color-dried-tomatoes-700: #7b4d45;
  --color-dried-tomatoes-800: #5b3832;
  --color-dried-tomatoes-900: #402622;
  --color-dried-tomatoes-950: #281411;
}

SCSS

$dried-tomatoes: #a1655a;
$dried-tomatoes-rgb: 161, 101, 90;
$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);
}