#6270B5

CSS

:root {
  --loch-ness: #6270b5;
  --loch-ness-rgb: 98 112 181;
  --loch-ness-oklch: oklch(0.564 0.108 273.8);
}

.element {
  color: var(--loch-ness);
  background-color: hsl(230 36% 55%);
  border-color: oklch(0.564 0.108 273.8);
}

Tailwind CSS v4

@theme {
  --color-loch-ness: #6270b5;
  --color-loch-ness-50: #ecf3ff;
  --color-loch-ness-100: #dde6ff;
  --color-loch-ness-200: #c7d1ff;
  --color-loch-ness-300: #a8b3ef;
  --color-loch-ness-400: #8a9ade;
  --color-loch-ness-500: #7080cd;
  --color-loch-ness-600: #5f6cad;
  --color-loch-ness-700: #4c578b;
  --color-loch-ness-800: #354068;
  --color-loch-ness-900: #242c49;
  --color-loch-ness-950: #131930;
}

SCSS

$loch-ness: #6270b5;
$loch-ness-rgb: 98, 112, 181;
$loch-ness-light: mix(#fff, $loch-ness, 20%);
$loch-ness-dark: mix(#000, $loch-ness, 20%);

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