app/Casts/Color.php
use Illuminate\Contracts\Database\Eloquent\CastsAttributes;use Illuminate\Database\Eloquent\Model; class Color implements CastsAttributes{ public function get(Model $model, string $key, mixed $value, array $attributes): string { return '#'.$value; } public function set(Model $model, string $key, mixed $value, array $attributes): mixed { $color = ltrim($value, '#'); // Convert short hex colors if (strlen($color) === 3) { return $color[0].$color[0].$color[1].$color[1].$color[2].$color[2]; } return $color; }}