#8BA091

CSS

:root {
  --mother-earth: #8ba091;
  --mother-earth-rgb: 139 160 145;
  --mother-earth-oklch: oklch(0.685 0.032 154.4);
}

.element {
  color: var(--mother-earth);
  background-color: hsl(137 10% 59%);
  border-color: oklch(0.685 0.032 154.4);
}

Tailwind CSS v4

@theme {
  --color-mother-earth: #8ba091;
  --color-mother-earth-50: #eef8f1;
  --color-mother-earth-100: #e0ebe3;
  --color-mother-earth-200: #cad9cf;
  --color-mother-earth-300: #abbdb1;
  --color-mother-earth-400: #90a496;
  --color-mother-earth-500: #768d7d;
  --color-mother-earth-600: #64776a;
  --color-mother-earth-700: #505f54;
  --color-mother-earth-800: #3a463d;
  --color-mother-earth-900: #28302a;
  --color-mother-earth-950: #161c18;
}

SCSS

$mother-earth: #8ba091;
$mother-earth-rgb: 139, 160, 145;
$mother-earth-light: mix(#fff, $mother-earth, 20%);
$mother-earth-dark: mix(#000, $mother-earth, 20%);

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