bledeti

1. (of a person, face) to turn pale; to go pale
   Kad god vidi krv, on bledi. — Whenever he sees blood, he turns pale.
2. (of colour, fabric) to fade; to bleach
   Boje na ovoj majici blede posle svakog pranja. — The colours on this T-shirt fade after every wash.
3. (of memories, feelings) to fade; to grow dim
   Uspomene na detinjstvo polako blede. — Childhood memories are slowly fading.

The perfective is pobledeti for a face and izbledeti for colours or memories.