yes
Yes, the word redder is the comparative form of the adjective red.The superlative form is reddest.
redder
redder, reddest
The adjective is redder (it spells the same forward and backward, as do radar and racecar).
redder, reddest
Dative ; Red Comparative ; Redder ( or More red) Superlative, ; Reddest. ( or most red)
redder
redder
positive: red comparative: redder superlative: reddest
redder
redecoraterededicateredeemredefineredemptionredialredistrict
That could be "redder."