Blue Surf

CSS

:root {
  --blue-surf: #829d99;
  --blue-surf-rgb: 130 157 153;
  --blue-surf-oklch: oklch(0.674 0.031 185.5);
}

.element {
  color: var(--blue-surf);
  background-color: hsl(171 12% 56%);
  border-color: oklch(0.674 0.031 185.5);
}

Tailwind CSS v4

@theme {
  --color-blue-surf: #829d99;
  --color-blue-surf-50: #ecf8f7;
  --color-blue-surf-100: #ddebea;
  --color-blue-surf-200: #c6d9d6;
  --color-blue-surf-300: #a7bdba;
  --color-blue-surf-400: #8ba5a1;
  --color-blue-surf-500: #708d89;
  --color-blue-surf-600: #5f7774;
  --color-blue-surf-700: #4c605d;
  --color-blue-surf-800: #374643;
  --color-blue-surf-900: #25302f;
  --color-blue-surf-950: #141d1b;
}

SCSS

$blue-surf: #829d99;
$blue-surf-rgb: 130, 157, 153;
$blue-surf-light: mix(#fff, $blue-surf, 20%);
$blue-surf-dark: mix(#000, $blue-surf, 20%);

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