Titanium Blue

CSS

:root {
  --titanium-blue: #5b798e;
  --titanium-blue-rgb: 91 121 142;
  --titanium-blue-oklch: oklch(0.561 0.048 239.2);
}

.element {
  color: var(--titanium-blue);
  background-color: hsl(205 22% 46%);
  border-color: oklch(0.561 0.048 239.2);
}

Tailwind CSS v4

@theme {
  --color-titanium-blue: #5b798e;
  --color-titanium-blue-50: #eaf7ff;
  --color-titanium-blue-100: #dbeaf7;
  --color-titanium-blue-200: #c3d7e7;
  --color-titanium-blue-300: #a3bbce;
  --color-titanium-blue-400: #85a3b8;
  --color-titanium-blue-500: #698ba3;
  --color-titanium-blue-600: #597689;
  --color-titanium-blue-700: #475e6e;
  --color-titanium-blue-800: #334551;
  --color-titanium-blue-900: #233038;
  --color-titanium-blue-950: #121c23;
}

SCSS

$titanium-blue: #5b798e;
$titanium-blue-rgb: 91, 121, 142;
$titanium-blue-light: mix(#fff, $titanium-blue, 20%);
$titanium-blue-dark: mix(#000, $titanium-blue, 20%);

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