#5B7073

CSS

:root {
  --wrapped-in-twilight: #5b7073;
  --wrapped-in-twilight-rgb: 91 112 115;
  --wrapped-in-twilight-oklch: oklch(0.529 0.025 207);
}

.element {
  color: var(--wrapped-in-twilight);
  background-color: hsl(188 12% 40%);
  border-color: oklch(0.529 0.025 207);
}

Tailwind CSS v4

@theme {
  --color-wrapped-in-twilight: #5b7073;
  --color-wrapped-in-twilight-50: #edf7f9;
  --color-wrapped-in-twilight-100: #dfeaec;
  --color-wrapped-in-twilight-200: #c9d7da;
  --color-wrapped-in-twilight-300: #a9bbbe;
  --color-wrapped-in-twilight-400: #8ea3a6;
  --color-wrapped-in-twilight-500: #738b8f;
  --color-wrapped-in-twilight-600: #627679;
  --color-wrapped-in-twilight-700: #4e5e61;
  --color-wrapped-in-twilight-800: #384546;
  --color-wrapped-in-twilight-900: #273031;
  --color-wrapped-in-twilight-950: #151c1d;
}

SCSS

$wrapped-in-twilight: #5b7073;
$wrapped-in-twilight-rgb: 91, 112, 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);
}