#5E706E

CSS

:root {
  --wrapped-in-twilight: #5e706e;
  --wrapped-in-twilight-rgb: 94 112 110;
  --wrapped-in-twilight-oklch: oklch(0.53 0.022 188.3);
}

.element {
  color: var(--wrapped-in-twilight);
  background-color: hsl(173 9% 40%);
  border-color: oklch(0.53 0.022 188.3);
}

Tailwind CSS v4

@theme {
  --color-wrapped-in-twilight: #5e706e;
  --color-wrapped-in-twilight-50: #eff7f6;
  --color-wrapped-in-twilight-100: #e0eae9;
  --color-wrapped-in-twilight-200: #cad7d6;
  --color-wrapped-in-twilight-300: #acbbba;
  --color-wrapped-in-twilight-400: #91a3a1;
  --color-wrapped-in-twilight-500: #778b89;
  --color-wrapped-in-twilight-600: #647674;
  --color-wrapped-in-twilight-700: #505e5d;
  --color-wrapped-in-twilight-800: #3a4543;
  --color-wrapped-in-twilight-900: #28302f;
  --color-wrapped-in-twilight-950: #161c1b;
}

SCSS

$wrapped-in-twilight: #5e706e;
$wrapped-in-twilight-rgb: 94, 112, 110;
$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);
}