(Sorry for taking that long to see your comment :/)
Well... These are two different cases.
When someone says "Το χρώμα του είναι κόκκινο", they mean that the color of something is red, that something is red.
When someone says "To χρώμα του είναι το κόκκινο", they probably use it for people instead of things, and could either mean that
-out of a selection of colors, their own color is red, or that
-it's the color that suits them (idiomatically. Just like someone would say -'Pink is my color' -Το ροζ είναι το χρώμα μου- in English.)
I hope this helped you a bit. ^.^
You have been helpful in the past so, like a bear to honey, I'm back for more!
Can you please explain the verb "to be" for me. Sometimes it is "yo soy" and sometimes it is "yo estoy" and so on through the conjugation. When do I use which and why do I do so?
Your help would be much appreciated - again please!