so i had given up trying for morbol green based on how alinah's color chart shows to get there, since everything i tried sent me in a loop between othard blue and storm blue.

then i found this color calculator: FFXIV Chocobo Colour Calculator

i used the 8th rgb scale the 2 times i tried. doing what was suggested from othard blue to morbol green sent me back to storm blue. doing what was suggested from storm blue to morbol green sent me to void blue.

i'm out of fruit again and don't want to buy anymore so i'm sticking with this for now. maybe i'll try again once i've grown some more fruit.

fwiw, void blue is closer to morbol green from an rgb perspective, so this was a better result than getting othard or storm blue again. i'm guessing morbol green is just one of those harder colors to get.

here's a pic if anyone is curious.