Still, this gives no information to the blind nor to the colour-blind.

Secondly, they appear colour-blind, unable to distinguish between red and green.

At that point we switch to more sensitive, but colour-blind, receptors called rods.

Even to the colour-blind one word differeth from another in glory.

It is hard to convince the colour-blind of their own infirmity.

As is the case with the colour-blind, so with these seers.

Still, one-eyed, colour-blind observation is naturally unable to take account of these sense-messages.

This is also how we know that dogs are colour-blind.

Their colour-blind approach does not mean that racism will cease to exist at the polls.

And slowly but surely the nation is turning colour-blind.

Even the Yahoos were made to comprehend-whennot colour-blind.

It is colour-blind, and can only see dark tints.

I distinctly remember declaring that they were colour-blind, but this afterwards proved a groundless fear.

You cannot be a pilot if you are colour-blind.

It was as though he, or they, were colour-blind.

We hold and rightly, that British justice, if not blind, should at least be colour-blind.