#E4EEE1

CSS

:root {
  --hint-of-green: #e4eee1;
  --hint-of-green-rgb: 228 238 225;
  --hint-of-green-oklch: oklch(0.938 0.02 138.4);
}

.element {
  color: var(--hint-of-green);
  background-color: hsl(106 28% 91%);
  border-color: oklch(0.938 0.02 138.4);
}

Tailwind CSS v4

@theme {
  --color-hint-of-green: #e4eee1;
  --color-hint-of-green-50: #f2f7f1;
  --color-hint-of-green-100: #e4eae3;
  --color-hint-of-green-200: #d0d6ce;
  --color-hint-of-green-300: #b2bab0;
  --color-hint-of-green-400: #99a196;
  --color-hint-of-green-500: #808a7d;
  --color-hint-of-green-600: #6c746a;
  --color-hint-of-green-700: #565d54;
  --color-hint-of-green-800: #3f443d;
  --color-hint-of-green-900: #2b2f2a;
  --color-hint-of-green-950: #191c18;
}

SCSS

$hint-of-green: #e4eee1;
$hint-of-green-rgb: 228, 238, 225;
$hint-of-green-light: mix(#fff, $hint-of-green, 20%);
$hint-of-green-dark: mix(#000, $hint-of-green, 20%);

.element {
  color: $hint-of-green;
  box-shadow: 0 0 0 2px rgba($hint-of-green, 0.35);
}