What is the value of a 1935 dollar bill silver certificate worth It appears to have a red seal but I guess it might be brown but looks red to me?

Please check the back of your bill to see if it has the Word Hawaii printed over the ONE.

Standard 1935 series $1 silver certificates were printed with blue seals. During WWII special bills with brown seals were distributed in Hawaii. They used a different design so they could easily be recognized and declared worthless if the Japanese captured the islands.

If your bill has HAWAII on it, it can be moderately valuable. There's more information at the Related Question.

If it doesn't have overprinting it may have been exposed to chemicals or something else that affected its ink, and wouldn't any extra value.