#8D9F8F

CSS

:root {
  --mother-earth: #8d9f8f;
  --mother-earth-rgb: 141 159 143;
  --mother-earth-oklch: oklch(0.684 0.031 148.4);
}

.element {
  color: var(--mother-earth);
  background-color: hsl(127 9% 59%);
  border-color: oklch(0.684 0.031 148.4);
}

Tailwind CSS v4

@theme {
  --color-mother-earth: #8d9f8f;
  --color-mother-earth-50: #eff8f1;
  --color-mother-earth-100: #e1ebe3;
  --color-mother-earth-200: #cbd8cd;
  --color-mother-earth-300: #adbcaf;
  --color-mother-earth-400: #93a494;
  --color-mother-earth-500: #798c7b;
  --color-mother-earth-600: #667768;
  --color-mother-earth-700: #525f53;
  --color-mother-earth-800: #3c453c;
  --color-mother-earth-900: #293029;
  --color-mother-earth-950: #171c17;
}

SCSS

$mother-earth: #8d9f8f;
$mother-earth-rgb: 141, 159, 143;
$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);
}