What tests can i take to figure out if i am color blind online?

Several sites: If you search color blind test, you will find several sites you may be able to use. In any event, you should not rely on these tests alone to make the diagnosis, but should see an optometrist or opthalmologist.

Many available: Just google color deficiency testing which could include the Ishihara test, the most common used, and you will get the patterns on your computer screen. From these tests, using the criteria on the page, you can determine if you are color deficient and sometimes what type you have