#FF976A

CSS

:root {
  --atomic-tangerine: #ff976a;
  --atomic-tangerine-rgb: 255 151 106;
  --atomic-tangerine-oklch: oklch(0.776 0.139 43.7);
}

.element {
  color: var(--atomic-tangerine);
  background-color: hsl(18 100% 71%);
  border-color: oklch(0.776 0.139 43.7);
}

Tailwind CSS v4

@theme {
  --color-atomic-tangerine: #ff976a;
  --color-atomic-tangerine-50: #ffead5;
  --color-atomic-tangerine-100: #ffdac2;
  --color-atomic-tangerine-200: #ffc2a3;
  --color-atomic-tangerine-300: #f2a07a;
  --color-atomic-tangerine-400: #e18157;
  --color-atomic-tangerine-500: #cf622e;
  --color-atomic-tangerine-600: #af5329;
  --color-atomic-tangerine-700: #8c4320;
  --color-atomic-tangerine-800: #692f17;
  --color-atomic-tangerine-900: #4a200f;
  --color-atomic-tangerine-950: #300f03;
}

SCSS

$atomic-tangerine: #ff976a;
$atomic-tangerine-rgb: 255, 151, 106;
$atomic-tangerine-light: mix(#fff, $atomic-tangerine, 20%);
$atomic-tangerine-dark: mix(#000, $atomic-tangerine, 20%);

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