Using nothing but white flour. salt, filtered watwer, and yeast; my no-knead Ciabatta bread is considered to be excellent by all my family and friends.
However, the Ciabatta is not white, it seems almost like Rye bread in color.
After a day or so, we toast it, and it becomes something other than a soft bread.
Very edible, but with a distinctive crunchy texture that we still enjoy.
Have you seen white bread look gray/grey?