Teal Dark Blue

CSS

:root {
  --teal-dark-blue: #0f4d5c;
  --teal-dark-blue-rgb: 15 77 92;
  --teal-dark-blue-oklch: oklch(0.39 0.064 218.4);
}

.element {
  color: var(--teal-dark-blue);
  background-color: hsl(192 72% 21%);
  border-color: oklch(0.39 0.064 218.4);
}

Tailwind CSS v4

@theme {
  --color-teal-dark-blue: #0f4d5c;
  --color-teal-dark-blue-50: #e2faff;
  --color-teal-dark-blue-100: #d2edf7;
  --color-teal-dark-blue-200: #b7dbe8;
  --color-teal-dark-blue-300: #93c0ce;
  --color-teal-dark-blue-400: #72a8b8;
  --color-teal-dark-blue-500: #5191a3;
  --color-teal-dark-blue-600: #467a8a;
  --color-teal-dark-blue-700: #37626e;
  --color-teal-dark-blue-800: #274851;
  --color-teal-dark-blue-900: #1a3238;
  --color-teal-dark-blue-950: #0a1e23;
}

SCSS

$teal-dark-blue: #0f4d5c;
$teal-dark-blue-rgb: 15, 77, 92;
$teal-dark-blue-light: mix(#fff, $teal-dark-blue, 20%);
$teal-dark-blue-dark: mix(#000, $teal-dark-blue, 20%);

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