#42AB96

CSS

:root {
  --hole-in-one: #42ab96;
  --hole-in-one-rgb: 66 171 150;
  --hole-in-one-oklch: oklch(0.675 0.101 177.5);
}

.element {
  color: var(--hole-in-one);
  background-color: hsl(168 44% 46%);
  border-color: oklch(0.675 0.101 177.5);
}

Tailwind CSS v4

@theme {
  --color-hole-in-one: #42ab96;
  --color-hole-in-one-50: #d7fff6;
  --color-hole-in-one-100: #c4f4e9;
  --color-hole-in-one-200: #a5e3d5;
  --color-hole-in-one-300: #7bc9b9;
  --color-hole-in-one-400: #52b29e;
  --color-hole-in-one-500: #119c85;
  --color-hole-in-one-600: #168471;
  --color-hole-in-one-700: #13695a;
  --color-hole-in-one-800: #0d4e41;
  --color-hole-in-one-900: #08362d;
  --color-hole-in-one-950: #00211a;
}

SCSS

$hole-in-one: #42ab96;
$hole-in-one-rgb: 66, 171, 150;
$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);
}