#8FA356

CSS

:root {
  --springtide-melodies: #8fa356;
  --springtide-melodies-rgb: 143 163 86;
  --springtide-melodies-oklch: oklch(0.682 0.105 121.2);
}

.element {
  color: var(--springtide-melodies);
  background-color: hsl(76 31% 49%);
  border-color: oklch(0.682 0.105 121.2);
}

Tailwind CSS v4

@theme {
  --color-springtide-melodies: #8fa356;
  --color-springtide-melodies-50: #effbda;
  --color-springtide-melodies-100: #e1eec8;
  --color-springtide-melodies-200: #cbdcab;
  --color-springtide-melodies-300: #adc184;
  --color-springtide-melodies-400: #95a85f;
  --color-springtide-melodies-500: #7c913a;
  --color-springtide-melodies-600: #697a32;
  --color-springtide-melodies-700: #546228;
  --color-springtide-melodies-800: #3e471a;
  --color-springtide-melodies-900: #2b3111;
  --color-springtide-melodies-950: #181d04;
}

SCSS

$springtide-melodies: #8fa356;
$springtide-melodies-rgb: 143, 163, 86;
$springtide-melodies-light: mix(#fff, $springtide-melodies, 20%);
$springtide-melodies-dark: mix(#000, $springtide-melodies, 20%);

.element {
  color: $springtide-melodies;
  box-shadow: 0 0 0 2px rgba($springtide-melodies, 0.35);
}