#46707C

CSS

:root {
  --winter-storm: #46707c;
  --winter-storm-rgb: 70 112 124;
  --winter-storm-oklch: oklch(0.519 0.05 217.9);
}

.element {
  color: var(--winter-storm);
  background-color: hsl(193 28% 38%);
  border-color: oklch(0.519 0.05 217.9);
}

Tailwind CSS v4

@theme {
  --color-winter-storm: #46707c;
  --color-winter-storm-50: #e6f9ff;
  --color-winter-storm-100: #d6ecf4;
  --color-winter-storm-200: #bedae3;
  --color-winter-storm-300: #9cbec9;
  --color-winter-storm-400: #7da6b2;
  --color-winter-storm-500: #5f8f9c;
  --color-winter-storm-600: #517984;
  --color-winter-storm-700: #40616a;
  --color-winter-storm-800: #2e474e;
  --color-winter-storm-900: #1f3136;
  --color-winter-storm-950: #0f1d21;
}

SCSS

$winter-storm: #46707c;
$winter-storm-rgb: 70, 112, 124;
$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);
}