Blue Tuna

CSS

:root {
  --blue-tuna: #6f95c1;
  --blue-tuna-rgb: 111 149 193;
  --blue-tuna-oklch: oklch(0.659 0.078 252.6);
}

.element {
  color: var(--blue-tuna);
  background-color: hsl(212 40% 60%);
  border-color: oklch(0.659 0.078 252.6);
}

Tailwind CSS v4

@theme {
  --color-blue-tuna: #6f95c1;
  --color-blue-tuna-50: #e6f7ff;
  --color-blue-tuna-100: #d7eaff;
  --color-blue-tuna-200: #bed7f6;
  --color-blue-tuna-300: #9dbadf;
  --color-blue-tuna-400: #7da2cc;
  --color-blue-tuna-500: #6089b9;
  --color-blue-tuna-600: #51749c;
  --color-blue-tuna-700: #415d7d;
  --color-blue-tuna-800: #2d445d;
  --color-blue-tuna-900: #1f2f41;
  --color-blue-tuna-950: #0e1c2a;
}

SCSS

$blue-tuna: #6f95c1;
$blue-tuna-rgb: 111, 149, 193;
$blue-tuna-light: mix(#fff, $blue-tuna, 20%);
$blue-tuna-dark: mix(#000, $blue-tuna, 20%);

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