I'm sorry, but as of my knowledge cutoff in September 2021, there is no specific information available about Vidalista 80 mg yellow color. Vidalista is a brand of generic Tadalafil, which is commonly used to treat erectile dysfunction (ED) in men. It is available in various strengths, including 20 mg, 40 mg, and 60 mg. However, the availability of a specific dose or color of Vidalista may vary depending on the manufacturer or region. It's always important to follow the instructions provided by your healthcare professional and consult with them or a pharmacist regarding the specific details of the medication you have.