#51AA93

CSS

:root {
  --hole-in-one: #51aa93;
  --hole-in-one-rgb: 81 170 147;
  --hole-in-one-oklch: oklch(0.677 0.093 174.2);
}

.element {
  color: var(--hole-in-one);
  background-color: hsl(164 35% 49%);
  border-color: oklch(0.677 0.093 174.2);
}

Tailwind CSS v4

@theme {
  --color-hole-in-one: #51aa93;
  --color-hole-in-one-50: #dbfef4;
  --color-hole-in-one-100: #c8f3e7;
  --color-hole-in-one-200: #abe2d3;
  --color-hole-in-one-300: #83c7b6;
  --color-hole-in-one-400: #5eb19a;
  --color-hole-in-one-500: #309a82;
  --color-hole-in-one-600: #2b826e;
  --color-hole-in-one-700: #236858;
  --color-hole-in-one-800: #184d3f;
  --color-hole-in-one-900: #10352b;
  --color-hole-in-one-950: #022018;
}

SCSS

$hole-in-one: #51aa93;
$hole-in-one-rgb: 81, 170, 147;
$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);
}