I think this outfit is pretty dreadful, red-purple hijab with a navy shirt and brown doesn't make sense. Al-Farah used to make long navy shirt but they are now out of stock so you can try this shorter navy shirt from Liz Claiborne. She wore the long brown coat in Episode 15 but I beat most muhajabat have a brown and black coat and there are other options like khaki or olive, white or denim too! Try Shukr's outerwear section or Modern muslimah's tesettur options.
Here are some great shirts from Shukr that do go with a reddish, plummish, purplesh hijab:
Shukr's Sundial Wrap Top in Cherry for US $48.95 is now only available is size 2XL but there are other colors available in the other sizes and wrap shirts are very Rayyanni, see outfits nine and 11.
Shukr's Piped Lace Blouse for USD $54.95, the slight contrast detailing around the middle and on the sleeves makes a reference to the belt trend, without revealing your shape.
Or for a darker purple that is still pale:
Here's some other great purple/plum skirt options:
Wow this bold is a bold eye-popping skirt but if you love purple I really recommend you try Shukr's Jersey Tie Front Skirt in Grape for USD $54.95