However, you could use the following options depending on the intended meaning:
For "pink" as a color:
* Latin: Roseus (masculine), Rosa (feminine)
* French: Rose
* Spanish: Rosa
* Italian: Rosa
For "small" or "little" as in "little finger":
* Latin: Parvus, Minusculus, Minimus
* French: Petit
* Spanish: Pequeño
* Italian: Piccolo
For a more poetic approach, you could use words associated with the pinkie finger's position or function:
* Latin: Digitus minimus (smallest finger)
* Greek: Mikros daktylos (small finger)
Ultimately, the best choice will depend on the context and what you are trying to convey.