#616F70

CSS

:root {
  --wrapped-in-twilight: #616f70;
  --wrapped-in-twilight-rgb: 97 111 112;
  --wrapped-in-twilight-oklch: oklch(0.53 0.017 201.9);
}

.element {
  color: var(--wrapped-in-twilight);
  background-color: hsl(184 7% 41%);
  border-color: oklch(0.53 0.017 201.9);
}

Tailwind CSS v4

@theme {
  --color-wrapped-in-twilight: #616f70;
  --color-wrapped-in-twilight-50: #f0f7f7;
  --color-wrapped-in-twilight-100: #e2eaea;
  --color-wrapped-in-twilight-200: #ccd6d7;
  --color-wrapped-in-twilight-300: #aebabb;
  --color-wrapped-in-twilight-400: #93a2a3;
  --color-wrapped-in-twilight-500: #7a8a8b;
  --color-wrapped-in-twilight-600: #677575;
  --color-wrapped-in-twilight-700: #525d5e;
  --color-wrapped-in-twilight-800: #3c4445;
  --color-wrapped-in-twilight-900: #292f2f;
  --color-wrapped-in-twilight-950: #171c1c;
}

SCSS

$wrapped-in-twilight: #616f70;
$wrapped-in-twilight-rgb: 97, 111, 112;
$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);
}