You could also leave the black black, as you now have all three trans colors in the design.
Half pastel, half high contrast, maybe throw in the circled A of some kind to give a highlight to the black, balance the whole thing?
Or, you can as I elsewhere suggested, make the circle of the kitty be a trans colors ribbon, keeping it in black, or do the reverse, pastel kitty, red and black circle… lots of possibilities.
You could also leave the black black, as you now have all three trans colors in the design.
Half pastel, half high contrast, maybe throw in the circled A of some kind to give a highlight to the black, balance the whole thing?
Or, you can as I elsewhere suggested, make the circle of the kitty be a trans colors ribbon, keeping it in black, or do the reverse, pastel kitty, red and black circle… lots of possibilities.