#50717B

CSS

:root {
  --winter-storm: #50717b;
  --winter-storm-rgb: 80 113 123;
  --winter-storm-oklch: oklch(0.527 0.041 218.6);
}

.element {
  color: var(--winter-storm);
  background-color: hsl(194 21% 40%);
  border-color: oklch(0.527 0.041 218.6);
}

Tailwind CSS v4

@theme {
  --color-winter-storm: #50717b;
  --color-winter-storm-50: #e9f8fd;
  --color-winter-storm-100: #daebf2;
  --color-winter-storm-200: #c2d9e1;
  --color-winter-storm-300: #a1bdc6;
  --color-winter-storm-400: #84a5af;
  --color-winter-storm-500: #688d99;
  --color-winter-storm-600: #587781;
  --color-winter-storm-700: #466067;
  --color-winter-storm-800: #32464c;
  --color-winter-storm-900: #223134;
  --color-winter-storm-950: #111d20;
}

SCSS

$winter-storm: #50717b;
$winter-storm-rgb: 80, 113, 123;
$winter-storm-light: mix(#fff, $winter-storm, 20%);
$winter-storm-dark: mix(#000, $winter-storm, 20%);

.element {
  color: $winter-storm;
  box-shadow: 0 0 0 2px rgba($winter-storm, 0.35);
}