#5FB9DA

CSS

:root {
  --blue-martini: #5fb9da;
  --blue-martini-rgb: 95 185 218;
  --blue-martini-oklch: oklch(0.743 0.098 224.5);
}

.element {
  color: var(--blue-martini);
  background-color: hsl(196 62% 61%);
  border-color: oklch(0.743 0.098 224.5);
}

Tailwind CSS v4

@theme {
  --color-blue-martini: #5fb9da;
  --color-blue-martini-50: #d9fcff;
  --color-blue-martini-100: #c6efff;
  --color-blue-martini-200: #a8def5;
  --color-blue-martini-300: #7fc2de;
  --color-blue-martini-400: #56abca;
  --color-blue-martini-500: #2393b6;
  --color-blue-martini-600: #217d9a;
  --color-blue-martini-700: #1b647c;
  --color-blue-martini-800: #0f4a5b;
  --color-blue-martini-900: #0a3340;
  --color-blue-martini-950: #001f28;
}

SCSS

$blue-martini: #5fb9da;
$blue-martini-rgb: 95, 185, 218;
$blue-martini-light: mix(#fff, $blue-martini, 20%);
$blue-martini-dark: mix(#000, $blue-martini, 20%);

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