#467A9C

CSS

:root {
  --cry-me-a-river: #467a9c;
  --cry-me-a-river-rgb: 70 122 156;
  --cry-me-a-river-oklch: oklch(0.557 0.077 238.9);
}

.element {
  color: var(--cry-me-a-river);
  background-color: hsl(204 38% 44%);
  border-color: oklch(0.557 0.077 238.9);
}

Tailwind CSS v4

@theme {
  --color-cry-me-a-river: #467a9c;
  --color-cry-me-a-river-50: #e2f9ff;
  --color-cry-me-a-river-100: #d2ecff;
  --color-cry-me-a-river-200: #b8d9f3;
  --color-cry-me-a-river-300: #94bddc;
  --color-cry-me-a-river-400: #73a5c7;
  --color-cry-me-a-river-500: #538db4;
  --color-cry-me-a-river-600: #477898;
  --color-cry-me-a-river-700: #38607a;
  --color-cry-me-a-river-800: #27465a;
  --color-cry-me-a-river-900: #1a313f;
  --color-cry-me-a-river-950: #0a1d28;
}

SCSS

$cry-me-a-river: #467a9c;
$cry-me-a-river-rgb: 70, 122, 156;
$cry-me-a-river-light: mix(#fff, $cry-me-a-river, 20%);
$cry-me-a-river-dark: mix(#000, $cry-me-a-river, 20%);

.element {
  color: $cry-me-a-river;
  box-shadow: 0 0 0 2px rgba($cry-me-a-river, 0.35);
}