Miele has a detergent for colors
Scent is light and tends to lessen once things are dried.
Persil for colors (gel) leaves just as powerful scent as the powder/megaperls. This can be lessened to an extent by adding an extra rinse (or two), but there you are.
Sadly few TOL (if any) American detergents are offered with out OBAs. In fact the lower down shelves you go it seems they add more of the stuff to compensate for not having enzymes and or otherwise a superior detergent formula.
Don't know what you're washing, but Mrs. Meyers and several other "green" offerings don't contain OBAs, but are full of enzymes that should get the job done.
Just checked and Miele ultraphase "sensitive" has arrived (and gone) from Miele USA's stock. Currently on backorder:
https://mielestore.com/ultraphase-1-sensitive.html
Know what you are going to say; and it is a simple affair to get around not having proper dispensing system. A pair of pliers in past as worked for us! *LOL*
Keep in mind as with all detergents called "scent free" there actually is a fragrance added. It is more to mask scents of various chemicals used, but never the less it is a perfume.
Persil sensitive powder/megaperls back in the day was truly almost scent free. Then some clever chops decided to mess with things and that was that.