#587074

CSS

:root {
  --wrapped-in-twilight: #587074;
  --wrapped-in-twilight-rgb: 88 112 116;
  --wrapped-in-twilight-oklch: oklch(0.527 0.029 208.8);
}

.element {
  color: var(--wrapped-in-twilight);
  background-color: hsl(189 14% 40%);
  border-color: oklch(0.527 0.029 208.8);
}

Tailwind CSS v4

@theme {
  --color-wrapped-in-twilight: #587074;
  --color-wrapped-in-twilight-50: #ecf8fa;
  --color-wrapped-in-twilight-100: #deebed;
  --color-wrapped-in-twilight-200: #c7d8db;
  --color-wrapped-in-twilight-300: #a7bcc0;
  --color-wrapped-in-twilight-400: #8ba4a8;
  --color-wrapped-in-twilight-500: #708c90;
  --color-wrapped-in-twilight-600: #5f767a;
  --color-wrapped-in-twilight-700: #4c5f62;
  --color-wrapped-in-twilight-800: #374547;
  --color-wrapped-in-twilight-900: #263031;
  --color-wrapped-in-twilight-950: #141c1d;
}

SCSS

$wrapped-in-twilight: #587074;
$wrapped-in-twilight-rgb: 88, 112, 116;
$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);
}