Ok then you'll have to fill in the transparent pixels manually. I'll give you the steps to identify which ones are semi transparent.
First make sure you have a separate layer for your emblem and the pink background.
Now make 2 new empty layers placed on top of your emblem layer and fill them both in with white.
Next CTRL+Click your emblem photo in the layers section, this should select everything in your emblem layer.
Then go to Layer > Layer Mask > Reveal Selection, this should create a black and white copy of your emblem, drag and drop that to one of the white layers and then repeat the process a second time for the other one.
Next ALT+ Left click the Layer mask on the first layer and go to Image> Adjustments > Threshold and set it to 255.
Do the same for the layer directly on top of your emblem layer but set the threshold to 1.
Now Right Click on the very top mask with the 255 threshold and click Add Mask to Selection.
Finally go to the second mask with the 1 threshold and right click but this time choose Subtract mask from selection.
You should now have all the pixels that are semi transparent selected and you can now color them in.