#5BA991

CSS

:root {
  --hole-in-one: #5ba991;
  --hole-in-one-rgb: 91 169 145;
  --hole-in-one-oklch: oklch(0.678 0.086 171.5);
}

.element {
  color: var(--hole-in-one);
  background-color: hsl(162 31% 51%);
  border-color: oklch(0.678 0.086 171.5);
}

Tailwind CSS v4

@theme {
  --color-hole-in-one: #5ba991;
  --color-hole-in-one-50: #ddfef3;
  --color-hole-in-one-100: #ccf2e5;
  --color-hole-in-one-200: #afe1d1;
  --color-hole-in-one-300: #89c6b4;
  --color-hole-in-one-400: #66af98;
  --color-hole-in-one-500: #3f997f;
  --color-hole-in-one-600: #37816c;
  --color-hole-in-one-700: #2c6756;
  --color-hole-in-one-800: #1f4c3d;
  --color-hole-in-one-900: #15352a;
  --color-hole-in-one-950: #062018;
}

SCSS

$hole-in-one: #5ba991;
$hole-in-one-rgb: 91, 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);
}