Amazing! Thank you so much!

Notice the white of the FASTLAB logo center, and the white below the image. It seamlessly blends into the body of this email.The white type in the jpgs, however is a dirty white. More light grey. It's white when I made the jpg. Only grey after upload...

https://fastlabutv.com/

The white on my banner jpgs is not crisp white but a very dirty light grey. I've tried to change the overlay box to white but it lightens the image and makes the blacks milky. I want the black to be black and the white to be white. It's being altered...