#D9E3E1

CSS

:root {
  --homoeopathic-blue: #d9e3e1;
  --homoeopathic-blue-rgb: 217 227 225;
  --homoeopathic-blue-oklch: oklch(0.908 0.011 182.8);
}

.element {
  color: var(--homoeopathic-blue);
  background-color: hsl(168 15% 87%);
  border-color: oklch(0.908 0.011 182.8);
}

Tailwind CSS v4

@theme {
  --color-homoeopathic-blue: #d9e3e1;
  --color-homoeopathic-blue-50: #f2f6f5;
  --color-homoeopathic-blue-100: #e4e9e8;
  --color-homoeopathic-blue-200: #cfd6d5;
  --color-homoeopathic-blue-300: #b1b9b8;
  --color-homoeopathic-blue-400: #98a19f;
  --color-homoeopathic-blue-500: #7f8987;
  --color-homoeopathic-blue-600: #6b7472;
  --color-homoeopathic-blue-700: #565c5b;
  --color-homoeopathic-blue-800: #3e4442;
  --color-homoeopathic-blue-900: #2b2f2e;
  --color-homoeopathic-blue-950: #181b1b;
}

SCSS

$homoeopathic-blue: #d9e3e1;
$homoeopathic-blue-rgb: 217, 227, 225;
$homoeopathic-blue-light: mix(#fff, $homoeopathic-blue, 20%);
$homoeopathic-blue-dark: mix(#000, $homoeopathic-blue, 20%);

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