#A8978E

CSS

:root {
  --earl-grey: #a8978e;
  --earl-grey-rgb: 168 151 142;
  --earl-grey-oklch: oklch(0.689 0.024 49.8);
}

.element {
  color: var(--earl-grey);
  background-color: hsl(21 13% 61%);
  border-color: oklch(0.689 0.024 49.8);
}

Tailwind CSS v4

@theme {
  --color-earl-grey: #a8978e;
  --color-earl-grey-50: #fbf3ef;
  --color-earl-grey-100: #efe6e1;
  --color-earl-grey-200: #ddd2cb;
  --color-earl-grey-300: #c2b4ac;
  --color-earl-grey-400: #ab9b92;
  --color-earl-grey-500: #948278;
  --color-earl-grey-600: #7d6e66;
  --color-earl-grey-700: #645851;
  --color-earl-grey-800: #4a403b;
  --color-earl-grey-900: #332c29;
  --color-earl-grey-950: #1f1917;
}

SCSS

$earl-grey: #a8978e;
$earl-grey-rgb: 168, 151, 142;
$earl-grey-light: mix(#fff, $earl-grey, 20%);
$earl-grey-dark: mix(#000, $earl-grey, 20%);

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