#63D8CE

CSS

:root {
  --hammam-blue: #63d8ce;
  --hammam-blue-rgb: 99 216 206;
  --hammam-blue-oklch: oklch(0.812 0.107 187.7);
}

.element {
  color: var(--hammam-blue);
  background-color: hsl(175 60% 62%);
  border-color: oklch(0.812 0.107 187.7);
}

Tailwind CSS v4

@theme {
  --color-hammam-blue: #63d8ce;
  --color-hammam-blue-50: #d3fffc;
  --color-hammam-blue-100: #c0f4ef;
  --color-hammam-blue-200: #9ee3de;
  --color-hammam-blue-300: #71c9c3;
  --color-hammam-blue-400: #42b3aa;
  --color-hammam-blue-500: #009c93;
  --color-hammam-blue-600: #00847c;
  --color-hammam-blue-700: #006a63;
  --color-hammam-blue-800: #004e48;
  --color-hammam-blue-900: #003632;
  --color-hammam-blue-950: #00211e;
}

SCSS

$hammam-blue: #63d8ce;
$hammam-blue-rgb: 99, 216, 206;
$hammam-blue-light: mix(#fff, $hammam-blue, 20%);
$hammam-blue-dark: mix(#000, $hammam-blue, 20%);

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