Card is color black with silver letters 

Tesla Key Card is for Model 3 and Model Y vehicles for easy entry, operation and                transport. Key card is convenient for when your phone is not accessible, out of battery or if someone else needs temporary access, such as a valet.

To lock or unlock, tap your key card on the center of the pillar to the right of the driver’s window. To start your Model 3 or Model Y, tap your key card behind the cup holders and place your foot on the brake pedal to start.

Also This Key Card Supports Tesla Model S Plaid (2021-2023)