#CB1D7F

CSS

:root {
  --bottom-of-my-heart: #cb1d7f;
  --bottom-of-my-heart-rgb: 203 29 127;
  --bottom-of-my-heart-oklch: oklch(0.561 0.217 353.3);
}

.element {
  color: var(--bottom-of-my-heart);
  background-color: hsl(326 75% 45%);
  border-color: oklch(0.561 0.217 353.3);
}

Tailwind CSS v4

@theme {
  --color-bottom-of-my-heart: #cb1d7f;
  --color-bottom-of-my-heart-50: #ffdcf8;
  --color-bottom-of-my-heart-100: #ffcaeb;
  --color-bottom-of-my-heart-200: #ffacd8;
  --color-bottom-of-my-heart-300: #ff83bc;
  --color-bottom-of-my-heart-400: #f95ba9;
  --color-bottom-of-my-heart-500: #e72492;
  --color-bottom-of-my-heart-600: #c3237b;
  --color-bottom-of-my-heart-700: #9d1c63;
  --color-bottom-of-my-heart-800: #75134b;
  --color-bottom-of-my-heart-900: #520c34;
  --color-bottom-of-my-heart-950: #37001f;
}

SCSS

$bottom-of-my-heart: #cb1d7f;
$bottom-of-my-heart-rgb: 203, 29, 127;
$bottom-of-my-heart-light: mix(#fff, $bottom-of-my-heart, 20%);
$bottom-of-my-heart-dark: mix(#000, $bottom-of-my-heart, 20%);

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