#616F6A

CSS

:root {
  --wrapped-in-twilight: #616f6a;
  --wrapped-in-twilight-rgb: 97 111 106;
  --wrapped-in-twilight-oklch: oklch(0.528 0.019 172.1);
}

.element {
  color: var(--wrapped-in-twilight);
  background-color: hsl(159 7% 41%);
  border-color: oklch(0.528 0.019 172.1);
}

Tailwind CSS v4

@theme {
  --color-wrapped-in-twilight: #616f6a;
  --color-wrapped-in-twilight-50: #f0f7f5;
  --color-wrapped-in-twilight-100: #e2eae7;
  --color-wrapped-in-twilight-200: #cdd7d3;
  --color-wrapped-in-twilight-300: #aebbb7;
  --color-wrapped-in-twilight-400: #94a29d;
  --color-wrapped-in-twilight-500: #7a8a85;
  --color-wrapped-in-twilight-600: #687570;
  --color-wrapped-in-twilight-700: #535e5a;
  --color-wrapped-in-twilight-800: #3c4541;
  --color-wrapped-in-twilight-900: #292f2d;
  --color-wrapped-in-twilight-950: #171c1a;
}

SCSS

$wrapped-in-twilight: #616f6a;
$wrapped-in-twilight-rgb: 97, 111, 106;
$wrapped-in-twilight-light: mix(#fff, $wrapped-in-twilight, 20%);
$wrapped-in-twilight-dark: mix(#000, $wrapped-in-twilight, 20%);

.element {
  color: $wrapped-in-twilight;
  box-shadow: 0 0 0 2px rgba($wrapped-in-twilight, 0.35);
}