#461B29

CSS

:root {
  --black-hearted: #461b29;
  --black-hearted-rgb: 70 27 41;
  --black-hearted-oklch: oklch(0.291 0.068 1.8);
}

.element {
  color: var(--black-hearted);
  background-color: hsl(340 44% 19%);
  border-color: oklch(0.291 0.068 1.8);
}

Tailwind CSS v4

@theme {
  --color-black-hearted: #461b29;
  --color-black-hearted-50: #ffeef3;
  --color-black-hearted-100: #fddfe5;
  --color-black-hearted-200: #efc9d1;
  --color-black-hearted-300: #d7a9b3;
  --color-black-hearted-400: #c18e9b;
  --color-black-hearted-500: #ac7383;
  --color-black-hearted-600: #92626f;
  --color-black-hearted-700: #754e58;
  --color-black-hearted-800: #563841;
  --color-black-hearted-900: #3c272d;
  --color-black-hearted-950: #26151a;
}

SCSS

$black-hearted: #461b29;
$black-hearted-rgb: 70, 27, 41;
$black-hearted-light: mix(#fff, $black-hearted, 20%);
$black-hearted-dark: mix(#000, $black-hearted, 20%);

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