Seven Seas

CSS

:root {
  --seven-seas: #4a5c6a;
  --seven-seas-rgb: 74 92 106;
  --seven-seas-oklch: oklch(0.465 0.032 241.8);
}

.element {
  color: var(--seven-seas);
  background-color: hsl(206 18% 35%);
  border-color: oklch(0.465 0.032 241.8);
}

Tailwind CSS v4

@theme {
  --color-seven-seas: #4a5c6a;
  --color-seven-seas-50: #eef6fe;
  --color-seven-seas-100: #dfe9f2;
  --color-seven-seas-200: #c9d6e1;
  --color-seven-seas-300: #aabac7;
  --color-seven-seas-400: #8fa1b0;
  --color-seven-seas-500: #74899a;
  --color-seven-seas-600: #627482;
  --color-seven-seas-700: #4f5d68;
  --color-seven-seas-800: #39444c;
  --color-seven-seas-900: #272f35;
  --color-seven-seas-950: #151c20;
}

SCSS

$seven-seas: #4a5c6a;
$seven-seas-rgb: 74, 92, 106;
$seven-seas-light: mix(#fff, $seven-seas, 20%);
$seven-seas-dark: mix(#000, $seven-seas, 20%);

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