#1FB31B

CSS

:root {
  --try-your-luck: #1fb31b;
  --try-your-luck-rgb: 31 179 27;
  --try-your-luck-oklch: oklch(0.668 0.216 142.5);
}

.element {
  color: var(--try-your-luck);
  background-color: hsl(118 74% 40%);
  border-color: oklch(0.668 0.216 142.5);
}

Tailwind CSS v4

@theme {
  --color-try-your-luck: #1fb31b;
  --color-try-your-luck-50: #d0ffcf;
  --color-try-your-luck-100: #bbfbbb;
  --color-try-your-luck-200: #98ec99;
  --color-try-your-luck-300: #68d36c;
  --color-try-your-luck-400: #3bbc36;
  --color-try-your-luck-500: #00a600;
  --color-try-your-luck-600: #008c00;
  --color-try-your-luck-700: #007000;
  --color-try-your-luck-800: #005200;
  --color-try-your-luck-900: #013a00;
  --color-try-your-luck-950: #002300;
}

SCSS

$try-your-luck: #1fb31b;
$try-your-luck-rgb: 31, 179, 27;
$try-your-luck-light: mix(#fff, $try-your-luck, 20%);
$try-your-luck-dark: mix(#000, $try-your-luck, 20%);

.element {
  color: $try-your-luck;
  box-shadow: 0 0 0 2px rgba($try-your-luck, 0.35);
}