#6CB6CD

CSS

:root {
  --blue-martini: #6cb6cd;
  --blue-martini-rgb: 108 182 205;
  --blue-martini-oklch: oklch(0.737 0.081 220);
}

.element {
  color: var(--blue-martini);
  background-color: hsl(194 49% 61%);
  border-color: oklch(0.737 0.081 220);
}

Tailwind CSS v4

@theme {
  --color-blue-martini: #6cb6cd;
  --color-blue-martini-50: #ddfbff;
  --color-blue-martini-100: #cceffb;
  --color-blue-martini-200: #afdded;
  --color-blue-martini-300: #89c1d5;
  --color-blue-martini-400: #65aabf;
  --color-blue-martini-500: #3d93ab;
  --color-blue-martini-600: #357c91;
  --color-blue-martini-700: #2a6374;
  --color-blue-martini-800: #1c4955;
  --color-blue-martini-900: #13333b;
  --color-blue-martini-950: #041e25;
}

SCSS

$blue-martini: #6cb6cd;
$blue-martini-rgb: 108, 182, 205;
$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);
}