#F1EED8

CSS

:root {
  --washed-canvas: #f1eed8;
  --washed-canvas-rgb: 241 238 216;
  --washed-canvas-oklch: oklch(0.946 0.029 100.6);
}

.element {
  color: var(--washed-canvas);
  background-color: hsl(53 47% 90%);
  border-color: oklch(0.946 0.029 100.6);
}

Tailwind CSS v4

@theme {
  --color-washed-canvas: #f1eed8;
  --color-washed-canvas-50: #f6f6ec;
  --color-washed-canvas-100: #e9e8dd;
  --color-washed-canvas-200: #d6d5c7;
  --color-washed-canvas-300: #bab8a7;
  --color-washed-canvas-400: #a29f8c;
  --color-washed-canvas-500: #8a8771;
  --color-washed-canvas-600: #757260;
  --color-washed-canvas-700: #5d5b4c;
  --color-washed-canvas-800: #454337;
  --color-washed-canvas-900: #302e26;
  --color-washed-canvas-950: #1c1b14;
}

SCSS

$washed-canvas: #f1eed8;
$washed-canvas-rgb: 241, 238, 216;
$washed-canvas-light: mix(#fff, $washed-canvas, 20%);
$washed-canvas-dark: mix(#000, $washed-canvas, 20%);

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