If you want red, try considering tomato frogs. Although some are a bright orange-ish color, they could be a nice specimen to work with. Other possibilities also include fire bellied newts, strawberry dart frogs, red eyed tree frogs, fire bellied toads, some albino axolotl's are a nice pinkish shade with bright red gills. You could do some research. good luck with uour choice, & dont forget to find info, coz some i listed arent very good starters, hehehe
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My "babies" :
1.0.1 Indo BTS (Tiliqua gigas gigas)
0.0.1 Rainbow skinks (Mabuya multifasciata)
1.0.2 RES (Trachemys scripta elegans)
0.0.1 Amboina box turtles (Cuora amboinensis)
1.0.0 Chinese softshell (Trionyx sinensis)
1.0.0 Asian leaf turtle (Cyclemys dentata)
1.0.0 Leopard gecko (Eublepharis macularius)
0.0.2 Whites Tree Frog (Litoria caerulea)
And still growing...