Are red pennies worth more that brown?

no YES. It only counts when you are getting into the higher grades since anything that has been circulated for any amount of time has been exposed to the air enough to turn brown. In the "old days" an uncirculated copper coin that was described as "red" would bring a premium over another coin identical in all features except the color. Now with the 1 to 70 grading scale, the red coin will get a higher number. Correction ... the color of the coin has nothing to do with the number grade it may be assigned. The "RED" designation only comes into play when referring to uncirculated coins. Regardless of the uncirculated grade assigned to a coin, it can also be assigned a color attribute of either BROWN, RED-BROWN, or RED -- based on the amount of original mint red color still remains. The more original mint red color remains, the more valuable the coin will be.