can not pass varibles to view

Hi there

Change your controller as

class Hello extends CI_Controller{
protected $name=''; //or can be public / private depending on your scope
protected $color='';
public __construct(){
parent::__construct();
$this->name='test';
$this->color='red';
}
function view()
{
$data['name']=$this->name;
$data['color']=$this->color;
$this->load->view('view',$data);
}
}//end hello class
//then in your view
change it to:
Hai <font color="<?= $color ?>"> <?= $name ?> </font><!--Note the equal sign in front of name is needed -->

OR
Hai <font color="<?php echo $color ?>"><?php echo $name ?></font>

This should work!