#51AA8D

CSS

:root {
  --hole-in-one: #51aa8d;
  --hole-in-one-rgb: 81 170 141;
  --hole-in-one-oklch: oklch(0.675 0.097 169.5);
}

.element {
  color: var(--hole-in-one);
  background-color: hsl(160 35% 49%);
  border-color: oklch(0.675 0.097 169.5);
}

Tailwind CSS v4

@theme {
  --color-hole-in-one: #51aa8d;
  --color-hole-in-one-50: #dbfff2;
  --color-hole-in-one-100: #c8f3e4;
  --color-hole-in-one-200: #abe2cf;
  --color-hole-in-one-300: #83c8b1;
  --color-hole-in-one-400: #5eb195;
  --color-hole-in-one-500: #319b7c;
  --color-hole-in-one-600: #2c8369;
  --color-hole-in-one-700: #236954;
  --color-hole-in-one-800: #194d3c;
  --color-hole-in-one-900: #103629;
  --color-hole-in-one-950: #032117;
}

SCSS

$hole-in-one: #51aa8d;
$hole-in-one-rgb: 81, 170, 141;
$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);
}