example: im trying to dye a bed indigo. combining the bed with the dye in crafting table has no results and combining wool with the dye has none either. when i look in jei it says that the only way to craft the indigo bed is to combine it with one of the modded dyed beds, which i cant craft due to not being able to dye base game items.

I second this, it appears this might be an accidental oversight for indigo in particular. As Aqua for example appears to have the recipes.