#00A701

CSS

:root {
  --phosphor-green: #00a701;
  --phosphor-green-rgb: 0 167 1;
  --phosphor-green-oklch: oklch(0.631 0.215 142.5);
}

.element {
  color: var(--phosphor-green);
  background-color: hsl(120 100% 33%);
  border-color: oklch(0.631 0.215 142.5);
}

Tailwind CSS v4

@theme {
  --color-phosphor-green: #00a701;
  --color-phosphor-green-50: #d0ffcf;
  --color-phosphor-green-100: #bbfbbb;
  --color-phosphor-green-200: #98ec99;
  --color-phosphor-green-300: #68d36d;
  --color-phosphor-green-400: #3dbc37;
  --color-phosphor-green-500: #00a600;
  --color-phosphor-green-600: #008c00;
  --color-phosphor-green-700: #007000;
  --color-phosphor-green-800: #005200;
  --color-phosphor-green-900: #023900;
  --color-phosphor-green-950: #002300;
}

SCSS

$phosphor-green: #00a701;
$phosphor-green-rgb: 0, 167, 1;
$phosphor-green-light: mix(#fff, $phosphor-green, 20%);
$phosphor-green-dark: mix(#000, $phosphor-green, 20%);

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