#5E6F75

CSS

:root {
  --wrapped-in-twilight: #5e6f75;
  --wrapped-in-twilight-rgb: 94 111 117;
  --wrapped-in-twilight-oklch: oklch(0.53 0.022 221.1);
}

.element {
  color: var(--wrapped-in-twilight);
  background-color: hsl(196 11% 41%);
  border-color: oklch(0.53 0.022 221.1);
}

Tailwind CSS v4

@theme {
  --color-wrapped-in-twilight: #5e6f75;
  --color-wrapped-in-twilight-50: #eff7fa;
  --color-wrapped-in-twilight-100: #e0eaed;
  --color-wrapped-in-twilight-200: #cbd7db;
  --color-wrapped-in-twilight-300: #acbac0;
  --color-wrapped-in-twilight-400: #91a2a8;
  --color-wrapped-in-twilight-500: #778a91;
  --color-wrapped-in-twilight-600: #64757a;
  --color-wrapped-in-twilight-700: #505d62;
  --color-wrapped-in-twilight-800: #3a4448;
  --color-wrapped-in-twilight-900: #282f32;
  --color-wrapped-in-twilight-950: #161c1e;
}

SCSS

$wrapped-in-twilight: #5e6f75;
$wrapped-in-twilight-rgb: 94, 111, 117;
$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);
}