#97A146

CSS

:root {
  --springtide-melodies: #97a146;
  --springtide-melodies-rgb: 151 161 70;
  --springtide-melodies-oklch: oklch(0.682 0.116 114.8);
}

.element {
  color: var(--springtide-melodies);
  background-color: hsl(67 39% 45%);
  border-color: oklch(0.682 0.116 114.8);
}

Tailwind CSS v4

@theme {
  --color-springtide-melodies: #97a146;
  --color-springtide-melodies-50: #f2fad5;
  --color-springtide-melodies-100: #e5eec2;
  --color-springtide-melodies-200: #d0dba3;
  --color-springtide-melodies-300: #b3bf7a;
  --color-springtide-melodies-400: #9da651;
  --color-springtide-melodies-500: #858e22;
  --color-springtide-melodies-600: #70791f;
  --color-springtide-melodies-700: #5a6019;
  --color-springtide-melodies-800: #43460e;
  --color-springtide-melodies-900: #2e3109;
  --color-springtide-melodies-950: #1b1d00;
}

SCSS

$springtide-melodies: #97a146;
$springtide-melodies-rgb: 151, 161, 70;
$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);
}