Northern Pond

CSS

:root {
  --northern-pond: #a3b9cd;
  --northern-pond-rgb: 163 185 205;
  --northern-pond-oklch: oklch(0.776 0.038 245.7);
}

.element {
  color: var(--northern-pond);
  background-color: hsl(209 30% 72%);
  border-color: oklch(0.776 0.038 245.7);
}

Tailwind CSS v4

@theme {
  --color-northern-pond: #a3b9cd;
  --color-northern-pond-50: #edf6ff;
  --color-northern-pond-100: #dee9f4;
  --color-northern-pond-200: #c8d6e4;
  --color-northern-pond-300: #a9baca;
  --color-northern-pond-400: #8da1b4;
  --color-northern-pond-500: #72899e;
  --color-northern-pond-600: #617486;
  --color-northern-pond-700: #4d5d6b;
  --color-northern-pond-800: #37444f;
  --color-northern-pond-900: #262f37;
  --color-northern-pond-950: #141c22;
}

SCSS

$northern-pond: #a3b9cd;
$northern-pond-rgb: 163, 185, 205;
$northern-pond-light: mix(#fff, $northern-pond, 20%);
$northern-pond-dark: mix(#000, $northern-pond, 20%);

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