#55A994

CSS

:root {
  --hole-in-one: #55a994;
  --hole-in-one-rgb: 85 169 148;
  --hole-in-one-oklch: oklch(0.676 0.088 175.1);
}

.element {
  color: var(--hole-in-one);
  background-color: hsl(165 33% 50%);
  border-color: oklch(0.676 0.088 175.1);
}

Tailwind CSS v4

@theme {
  --color-hole-in-one: #55a994;
  --color-hole-in-one-50: #dcfef5;
  --color-hole-in-one-100: #caf2e7;
  --color-hole-in-one-200: #ade1d3;
  --color-hole-in-one-300: #85c7b7;
  --color-hole-in-one-400: #61b09b;
  --color-hole-in-one-500: #379983;
  --color-hole-in-one-600: #30826f;
  --color-hole-in-one-700: #276859;
  --color-hole-in-one-800: #1b4c3f;
  --color-hole-in-one-900: #12352c;
  --color-hole-in-one-950: #042019;
}

SCSS

$hole-in-one: #55a994;
$hole-in-one-rgb: 85, 169, 148;
$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);
}