My flap is lighter than my normal tongue too Jennifer.
It does not worry me too much but I do remember a child innocently asking me about it when I laughed.
I also have a white thin seam at the join!
It was very noticeable in a family photo so I just Photoshopped to even up the colour blush
Gabriele

History Leukoplakia bx 8/2006 SCC floor mouth T3N0M0- Verrucous Carcinoma.
14 hour 0p SCC-Right ND/excision/marginal mandibulectomy 9/2006, 4 teeth removed, flap from wrist, trach-ng 6 days- no chemo/rad.
6 ops and debulking (flap/tongue join) + bx's 2006-2012.
bx Jan 2012 Hyperkeratosis-Epithelial Dysplasia
24cm GIST tumour removed 8/2013. Indefinite Oral Chemo.

1/31/16 passed away peacefully surrounded by family