#5D6F73

CSS

:root {
  --wrapped-in-twilight: #5d6f73;
  --wrapped-in-twilight-rgb: 93 111 115;
  --wrapped-in-twilight-oklch: oklch(0.528 0.022 212.6);
}

.element {
  color: var(--wrapped-in-twilight);
  background-color: hsl(191 11% 41%);
  border-color: oklch(0.528 0.022 212.6);
}

Tailwind CSS v4

@theme {
  --color-wrapped-in-twilight: #5d6f73;
  --color-wrapped-in-twilight-50: #eef7f9;
  --color-wrapped-in-twilight-100: #e0eaec;
  --color-wrapped-in-twilight-200: #cad7da;
  --color-wrapped-in-twilight-300: #abbbbe;
  --color-wrapped-in-twilight-400: #90a2a6;
  --color-wrapped-in-twilight-500: #768a8f;
  --color-wrapped-in-twilight-600: #647579;
  --color-wrapped-in-twilight-700: #505e61;
  --color-wrapped-in-twilight-800: #3a4547;
  --color-wrapped-in-twilight-900: #282f31;
  --color-wrapped-in-twilight-950: #161c1d;
}

SCSS

$wrapped-in-twilight: #5d6f73;
$wrapped-in-twilight-rgb: 93, 111, 115;
$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);
}