#5E6F72

CSS

:root {
  --wrapped-in-twilight: #5e6f72;
  --wrapped-in-twilight-rgb: 94 111 114;
  --wrapped-in-twilight-oklch: oklch(0.529 0.021 209.4);
}

.element {
  color: var(--wrapped-in-twilight);
  background-color: hsl(189 10% 41%);
  border-color: oklch(0.529 0.021 209.4);
}

Tailwind CSS v4

@theme {
  --color-wrapped-in-twilight: #5e6f72;
  --color-wrapped-in-twilight-50: #eff7f8;
  --color-wrapped-in-twilight-100: #e0eaec;
  --color-wrapped-in-twilight-200: #cbd7d9;
  --color-wrapped-in-twilight-300: #acbabd;
  --color-wrapped-in-twilight-400: #91a2a5;
  --color-wrapped-in-twilight-500: #778a8e;
  --color-wrapped-in-twilight-600: #657578;
  --color-wrapped-in-twilight-700: #505e60;
  --color-wrapped-in-twilight-800: #3a4546;
  --color-wrapped-in-twilight-900: #282f30;
  --color-wrapped-in-twilight-950: #161c1d;
}

SCSS

$wrapped-in-twilight: #5e6f72;
$wrapped-in-twilight-rgb: 94, 111, 114;
$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);
}