#56A991

CSS

:root {
  --hole-in-one: #56a991;
  --hole-in-one-rgb: 86 169 145;
  --hole-in-one-oklch: oklch(0.676 0.09 172.4);
}

.element {
  color: var(--hole-in-one);
  background-color: hsl(163 33% 50%);
  border-color: oklch(0.676 0.09 172.4);
}

Tailwind CSS v4

@theme {
  --color-hole-in-one: #56a991;
  --color-hole-in-one-50: #dcfef3;
  --color-hole-in-one-100: #caf2e6;
  --color-hole-in-one-200: #ade1d2;
  --color-hole-in-one-300: #86c7b4;
  --color-hole-in-one-400: #62b099;
  --color-hole-in-one-500: #399980;
  --color-hole-in-one-600: #32826c;
  --color-hole-in-one-700: #286856;
  --color-hole-in-one-800: #1c4c3e;
  --color-hole-in-one-900: #13352a;
  --color-hole-in-one-950: #042018;
}

SCSS

$hole-in-one: #56a991;
$hole-in-one-rgb: 86, 169, 145;
$hole-in-one-light: mix(#fff, $hole-in-one, 20%);
$hole-in-one-dark: mix(#000, $hole-in-one, 20%);

.element {
  color: $hole-in-one;
  box-shadow: 0 0 0 2px rgba($hole-in-one, 0.35);
}