#677792

CSS

:root {
  --infinity-and-beyond: #677792;
  --infinity-and-beyond-rgb: 103 119 146;
  --infinity-and-beyond-oklch: oklch(0.566 0.046 260.8);
}

.element {
  color: var(--infinity-and-beyond);
  background-color: hsl(218 17% 49%);
  border-color: oklch(0.566 0.046 260.8);
}

Tailwind CSS v4

@theme {
  --color-infinity-and-beyond: #677792;
  --color-infinity-and-beyond-50: #eef5ff;
  --color-infinity-and-beyond-100: #e0e8f8;
  --color-infinity-and-beyond-200: #cad5e9;
  --color-infinity-and-beyond-300: #abb8d0;
  --color-infinity-and-beyond-400: #8f9fba;
  --color-infinity-and-beyond-500: #7587a5;
  --color-infinity-and-beyond-600: #63728c;
  --color-infinity-and-beyond-700: #4f5b70;
  --color-infinity-and-beyond-800: #394353;
  --color-infinity-and-beyond-900: #272e3a;
  --color-infinity-and-beyond-950: #151b24;
}

SCSS

$infinity-and-beyond: #677792;
$infinity-and-beyond-rgb: 103, 119, 146;
$infinity-and-beyond-light: mix(#fff, $infinity-and-beyond, 20%);
$infinity-and-beyond-dark: mix(#000, $infinity-and-beyond, 20%);

.element {
  color: $infinity-and-beyond;
  box-shadow: 0 0 0 2px rgba($infinity-and-beyond, 0.35);
}