Well - when I was pregnant my one stipulation to anyone knitting for me was 'NO PASTELS'!!!! I hate them with a passion and always wanted nice 'non-baby' colours which were virtually non-existant!
So for non-gender knowledge I would go for any colour except pink or blue .... :D
My DS's blankets were bright orange and lime green fleece and their sheets were dark blue, orange and lime green too!
Keep pastels away from me