Max LEDs powered via USB2?

[3dgeo]

Hi,

I'm making custom USB macro keyboard with around 40 keys and want to RGB it (48 RGB leds – 144 leds total).
I need some help calculating current: lets say one >RGB< LED takes 0.056A@3V, so all 48 RGB will take ~2.7A, in total a bit over 8W, is my calculations OK so far?
As to my knowledge USB2 can provide max 0.5A@5V, that is 2.5W.
Obviously I need to multiplex them, currently my plan is to use  3 * TLC5940PW and control only 16 RGB LEDs at one time.
16LED * 0.056A * 3V = 2.7W – still too much power, but I can lower each LED current with TLC5940PW resistor, cos I thing I'll have enough brightness even while multiplexing? Is my approach optimal or is there a better way to do what I want?

Other thing I try to figure out: I need 3 PNP transistors for multiplexing as well, is there a reason why I shouldn't use these mosfets?  https://www.vishay.com/docs/70833/70833.pdf (I'll make proper PCB)

LEDs I'm planning to use: https://www.aliexpress.com/item/Hot-sale-3mm-RGB-led-diffused-4-PIN-multicolor-dip-led-2-6-3-5-6/32680356046.html?spm=a2g0s.13010208.99999999.265.3f8e3c00HVfABv

Thank You for Your time.