What's wrong with my oatmeal cookies?

Is your oven temperature off? Mine is 25 degrees cooler than it indicates. I had a lot of pale biscuits before I realized what was wrong. Also, my cookies have 3 cups of oats and equal amounts of the two sugars. I’m on the wrong computer, so can’t check the recipe, but you can probably find it if you do a search, as I posted the recipe on another thread.