#A7B4A6

CSS

:root {
  --alpine-air: #a7b4a6;
  --alpine-air-rgb: 167 180 166;
  --alpine-air-oklch: oklch(0.756 0.024 143.3);
}

.element {
  color: var(--alpine-air);
  background-color: hsl(116 9% 68%);
  border-color: oklch(0.756 0.024 143.3);
}

Tailwind CSS v4

@theme {
  --color-alpine-air: #a7b4a6;
  --color-alpine-air-50: #f1f7f1;
  --color-alpine-air-100: #e3eae3;
  --color-alpine-air-200: #ced7ce;
  --color-alpine-air-300: #b0bbb0;
  --color-alpine-air-400: #96a295;
  --color-alpine-air-500: #7d8b7c;
  --color-alpine-air-600: #6a7569;
  --color-alpine-air-700: #555e54;
  --color-alpine-air-800: #3e453d;
  --color-alpine-air-900: #2b2f2a;
  --color-alpine-air-950: #181c17;
}

SCSS

$alpine-air: #a7b4a6;
$alpine-air-rgb: 167, 180, 166;
$alpine-air-light: mix(#fff, $alpine-air, 20%);
$alpine-air-dark: mix(#000, $alpine-air, 20%);

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