Hi Peter,
Thanks, I'll try again with those steps, just having trouble removing all of the blue cast from non-sky and non-cloud elements effectively.
A lot depends on the light conditions, time of day, UV index, etc.
If shot at the right time and at the right angle to the sun, then some of these colors fall in line easily. But it's not always possible to line yourself up with the sun properly.
My color blindness is pretty common: I have trouble with hues, telling red/green apart and naming colors. But I don't see in black and white or anything like that.