#50717E

CSS

:root {
  --winter-storm: #50717e;
  --winter-storm-rgb: 80 113 126;
  --winter-storm-oklch: oklch(0.528 0.043 224.4);
}

.element {
  color: var(--winter-storm);
  background-color: hsl(197 22% 40%);
  border-color: oklch(0.528 0.043 224.4);
}

Tailwind CSS v4

@theme {
  --color-winter-storm: #50717e;
  --color-winter-storm-50: #e9f8ff;
  --color-winter-storm-100: #daebf3;
  --color-winter-storm-200: #c2d8e3;
  --color-winter-storm-300: #a1bcc9;
  --color-winter-storm-400: #84a4b2;
  --color-winter-storm-500: #678d9c;
  --color-winter-storm-600: #587784;
  --color-winter-storm-700: #465f69;
  --color-winter-storm-800: #32464d;
  --color-winter-storm-900: #223036;
  --color-winter-storm-950: #111d21;
}

SCSS

$winter-storm: #50717e;
$winter-storm-rgb: 80, 113, 126;
$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);
}