A colour blind person can read a label as you say Mamya, what they can't do is choose colours that match or tone. If you know a man with colour vision deficiency, ask them to explain.
He has a pair of trousers in that same acid yellow.
He very often wears clothing that matches the colours of the country's flag, sometimes the railway's logo, sometimes whatever he likes.
He is usually immaculately dressed but the other day he was wearing a very wrinkled white shirt.