What is the chance of having a color blind son?

Each daughter has a 50% chance of being a carrier and each son has a 50% chance of being color blind.

Is there a chance of having a color blind daughter?

Girls are much less likely to be colour blind (1 in 200 chance) and to inherit red/green colour blindness girls must have a colour blind father. Most parents of colour blind children don't know that they have a colour blind child and in most cases the child won't realise either.