#6072B1

CSS

:root {
  --loch-ness: #6072b1;
  --loch-ness-rgb: 96 114 177;
  --loch-ness-oklch: oklch(0.565 0.1 270.8);
}

.element {
  color: var(--loch-ness);
  background-color: hsl(227 34% 54%);
  border-color: oklch(0.565 0.1 270.8);
}

Tailwind CSS v4

@theme {
  --color-loch-ness: #6072b1;
  --color-loch-ness-50: #ebf4ff;
  --color-loch-ness-100: #dce7ff;
  --color-loch-ness-200: #c6d2ff;
  --color-loch-ness-300: #a6b5eb;
  --color-loch-ness-400: #889bda;
  --color-loch-ness-500: #6d82c9;
  --color-loch-ness-600: #5d6ea9;
  --color-loch-ness-700: #4a5888;
  --color-loch-ness-800: #344165;
  --color-loch-ness-900: #232c47;
  --color-loch-ness-950: #12192e;
}

SCSS

$loch-ness: #6072b1;
$loch-ness-rgb: 96, 114, 177;
$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);
}