#616F6B

CSS

:root {
  --wrapped-in-twilight: #616f6b;
  --wrapped-in-twilight-rgb: 97 111 107;
  --wrapped-in-twilight-oklch: oklch(0.529 0.018 176.5);
}

.element {
  color: var(--wrapped-in-twilight);
  background-color: hsl(163 7% 41%);
  border-color: oklch(0.529 0.018 176.5);
}

Tailwind CSS v4

@theme {
  --color-wrapped-in-twilight: #616f6b;
  --color-wrapped-in-twilight-50: #f0f7f5;
  --color-wrapped-in-twilight-100: #e2eae8;
  --color-wrapped-in-twilight-200: #cdd7d4;
  --color-wrapped-in-twilight-300: #aebbb7;
  --color-wrapped-in-twilight-400: #94a29e;
  --color-wrapped-in-twilight-500: #7a8a86;
  --color-wrapped-in-twilight-600: #687571;
  --color-wrapped-in-twilight-700: #535e5a;
  --color-wrapped-in-twilight-800: #3c4442;
  --color-wrapped-in-twilight-900: #292f2d;
  --color-wrapped-in-twilight-950: #171c1a;
}

SCSS

$wrapped-in-twilight: #616f6b;
$wrapped-in-twilight-rgb: 97, 111, 107;
$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);
}