#4EAA91

CSS

:root {
  --hole-in-one: #4eaa91;
  --hole-in-one-rgb: 78 170 145;
  --hole-in-one-oklch: oklch(0.675 0.096 173);
}

.element {
  color: var(--hole-in-one);
  background-color: hsl(164 37% 49%);
  border-color: oklch(0.675 0.096 173);
}

Tailwind CSS v4

@theme {
  --color-hole-in-one: #4eaa91;
  --color-hole-in-one-50: #dafff3;
  --color-hole-in-one-100: #c8f3e6;
  --color-hole-in-one-200: #a9e2d2;
  --color-hole-in-one-300: #81c8b4;
  --color-hole-in-one-400: #5cb199;
  --color-hole-in-one-500: #2c9b80;
  --color-hole-in-one-600: #28836c;
  --color-hole-in-one-700: #206957;
  --color-hole-in-one-800: #174d3e;
  --color-hole-in-one-900: #0f362b;
  --color-hole-in-one-950: #022118;
}

SCSS

$hole-in-one: #4eaa91;
$hole-in-one-rgb: 78, 170, 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);
}