A Port In Black Space

First it was just black and white
And then, the universe
But dad, and the colours?
They came after

They have many names
But we know them as red, green and blue
You are nothing but my antithesis
We will see each other soon enough

And then
They've slip
That's what this old book says but
There's nothing about the other three
Hmmm, strange

Boss, we've got another's signal
We've found him!