Is the original color for phantom army the only one that shows the correct color of powers that use?

I tried a differant color and all the powers where that color, anyways thank you.

There are two options under the pallette that make all the colors in that powerset or all the colors in your build use the same options. You might have had them checked.

If you're asking if setting the color of your Phantom Army also sets the colors of their blasts and attacks, then yes, I believe it does.

I do know that with my Phantasm, I made him a bright gold to match the gold color of my Controller's other powers. His blasts are all gold. However, amusingly the Decoys that he summons are the original pure white color, and their blasts are all pure white. It makes it easy to see which are his summons and which are mine.

If you're looking to make the blasts a different color from the color of your Phantam Army, trying making the secondary color of your Phantom Army match the color you want. Then make their primary color something else. Their "costume" will still have that second primary color, but I believe the blasts only use the one color, not both.

For instance, if you're trying to make your PA's blasts the original white blasts, try making them white and whatever other color you have in mind for their costume, not that color and white, or that color for both choices.