#E78672

CSS

:root {
  --in-for-a-penny: #e78672;
  --in-for-a-penny-rgb: 231 134 114;
  --in-for-a-penny-oklch: oklch(0.72 0.123 32.6);
}

.element {
  color: var(--in-for-a-penny);
  background-color: hsl(10 71% 68%);
  border-color: oklch(0.72 0.123 32.6);
}

Tailwind CSS v4

@theme {
  --color-in-for-a-penny: #e78672;
  --color-in-for-a-penny-50: #ffe9de;
  --color-in-for-a-penny-100: #ffdacd;
  --color-in-for-a-penny-200: #ffc2b1;
  --color-in-for-a-penny-300: #efa08d;
  --color-in-for-a-penny-400: #dd826f;
  --color-in-for-a-penny-500: #ca634f;
  --color-in-for-a-penny-600: #ab5543;
  --color-in-for-a-penny-700: #894336;
  --color-in-for-a-penny-800: #663027;
  --color-in-for-a-penny-900: #48211a;
  --color-in-for-a-penny-950: #2f100b;
}

SCSS

$in-for-a-penny: #e78672;
$in-for-a-penny-rgb: 231, 134, 114;
$in-for-a-penny-light: mix(#fff, $in-for-a-penny, 20%);
$in-for-a-penny-dark: mix(#000, $in-for-a-penny, 20%);

.element {
  color: $in-for-a-penny;
  box-shadow: 0 0 0 2px rgba($in-for-a-penny, 0.35);
}