#2A795C

CSS

:root {
  --greasy-greens: #2a795c;
  --greasy-greens-rgb: 42 121 92;
  --greasy-greens-oklch: oklch(0.519 0.09 165.3);
}

.element {
  color: var(--greasy-greens);
  background-color: hsl(158 48% 32%);
  border-color: oklch(0.519 0.09 165.3);
}

Tailwind CSS v4

@theme {
  --color-greasy-greens: #2a795c;
  --color-greasy-greens-50: #defef0;
  --color-greasy-greens-100: #ccf2e2;
  --color-greasy-greens-200: #b0e1cc;
  --color-greasy-greens-300: #8ac7ae;
  --color-greasy-greens-400: #68b091;
  --color-greasy-greens-500: #429978;
  --color-greasy-greens-600: #398165;
  --color-greasy-greens-700: #2e6851;
  --color-greasy-greens-800: #214c39;
  --color-greasy-greens-900: #163527;
  --color-greasy-greens-950: #062015;
}

SCSS

$greasy-greens: #2a795c;
$greasy-greens-rgb: 42, 121, 92;
$greasy-greens-light: mix(#fff, $greasy-greens, 20%);
$greasy-greens-dark: mix(#000, $greasy-greens, 20%);

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