#E4E8DE

CSS

:root {
  --washed-dollar: #e4e8de;
  --washed-dollar-rgb: 228 232 222;
  --washed-dollar-oklch: oklch(0.925 0.014 124.6);
}

.element {
  color: var(--washed-dollar);
  background-color: hsl(84 18% 89%);
  border-color: oklch(0.925 0.014 124.6);
}

Tailwind CSS v4

@theme {
  --color-washed-dollar: #e4e8de;
  --color-washed-dollar-50: #f4f6f2;
  --color-washed-dollar-100: #e6e9e4;
  --color-washed-dollar-200: #d2d5cf;
  --color-washed-dollar-300: #b5b9b1;
  --color-washed-dollar-400: #9ca097;
  --color-washed-dollar-500: #84887e;
  --color-washed-dollar-600: #70736b;
  --color-washed-dollar-700: #595c55;
  --color-washed-dollar-800: #41433e;
  --color-washed-dollar-900: #2d2e2b;
  --color-washed-dollar-950: #1a1b18;
}

SCSS

$washed-dollar: #e4e8de;
$washed-dollar-rgb: 228, 232, 222;
$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);
}