#616CCD

CSS

:root {
  --loch-ness: #616ccd;
  --loch-ness-rgb: 97 108 205;
  --loch-ness-oklch: oklch(0.57 0.148 275.8);
}

.element {
  color: var(--loch-ness);
  background-color: hsl(234 52% 59%);
  border-color: oklch(0.57 0.148 275.8);
}

Tailwind CSS v4

@theme {
  --color-loch-ness: #616ccd;
  --color-loch-ness-50: #eaf2ff;
  --color-loch-ness-100: #dbe4ff;
  --color-loch-ness-200: #c5cfff;
  --color-loch-ness-300: #a5b0ff;
  --color-loch-ness-400: #8795f5;
  --color-loch-ness-500: #6d79e6;
  --color-loch-ness-600: #5c67c2;
  --color-loch-ness-700: #4a529c;
  --color-loch-ness-800: #333c75;
  --color-loch-ness-900: #232a52;
  --color-loch-ness-950: #121737;
}

SCSS

$loch-ness: #616ccd;
$loch-ness-rgb: 97, 108, 205;
$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);
}