#DDDFD5

CSS

:root {
  --washed-dollar: #dddfd5;
  --washed-dollar-rgb: 221 223 213;
  --washed-dollar-oklch: oklch(0.899 0.014 115.9);
}

.element {
  color: var(--washed-dollar);
  background-color: hsl(72 14% 85%);
  border-color: oklch(0.899 0.014 115.9);
}

Tailwind CSS v4

@theme {
  --color-washed-dollar: #dddfd5;
  --color-washed-dollar-50: #f5f6f1;
  --color-washed-dollar-100: #e7e8e3;
  --color-washed-dollar-200: #d3d5cf;
  --color-washed-dollar-300: #b6b8b1;
  --color-washed-dollar-400: #9e9f97;
  --color-washed-dollar-500: #85877d;
  --color-washed-dollar-600: #71736a;
  --color-washed-dollar-700: #5a5c55;
  --color-washed-dollar-800: #42433e;
  --color-washed-dollar-900: #2e2e2a;
  --color-washed-dollar-950: #1a1b18;
}

SCSS

$washed-dollar: #dddfd5;
$washed-dollar-rgb: 221, 223, 213;
$washed-dollar-light: mix(#fff, $washed-dollar, 20%);
$washed-dollar-dark: mix(#000, $washed-dollar, 20%);

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