#009DC6

CSS

:root {
  --blue-ocean: #009dc6;
  --blue-ocean-rgb: 0 157 198;
  --blue-ocean-oklch: oklch(0.647 0.123 224.9);
}

.element {
  color: var(--blue-ocean);
  background-color: hsl(192 100% 39%);
  border-color: oklch(0.647 0.123 224.9);
}

Tailwind CSS v4

@theme {
  --color-blue-ocean: #009dc6;
  --color-blue-ocean-50: #d1fdff;
  --color-blue-ocean-100: #bdf1ff;
  --color-blue-ocean-200: #9be0fd;
  --color-blue-ocean-300: #6dc4e8;
  --color-blue-ocean-400: #37add5;
  --color-blue-ocean-500: #0095c2;
  --color-blue-ocean-600: #007ea4;
  --color-blue-ocean-700: #006584;
  --color-blue-ocean-800: #004b61;
  --color-blue-ocean-900: #003444;
  --color-blue-ocean-950: #001f2c;
}

SCSS

$blue-ocean: #009dc6;
$blue-ocean-rgb: 0, 157, 198;
$blue-ocean-light: mix(#fff, $blue-ocean, 20%);
$blue-ocean-dark: mix(#000, $blue-ocean, 20%);

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