When you use more than one adjective to designate a single color (like "light blue," "dark green," "pale pink" etc.), neither of the adjectives changes according to the noun it modifies. For example:
"Il a les yeux bleu clair et les cheveux brun foncé."
"He has light blue eyes and dark brown hair."
Several back, the sentence to write was, "This dress is blue." I had had one marked wrong when I wrote "bleue" on another, so I put it without the e on the end. It was marked wrong, showing an 'e' on the end. Now, this one does not want the 'e'. Which is it? (Yes, I understand 'e' usually means feminine but isn't always used but I've done both for the same subject and had it marked wrong and the reverse shown.)
I typed cette robe est bleu claire and was told it is wrong. The given answer is the same as I typed? Don't understand!
Compound color terms maintain the masculine form, i.e., bleu clair, not bleu claire, not bleue claire.
Does anyone have a pattern or rule for knowing when to pronounce "est" as "e" or "eh"?
I take it you mean the long 'e'? If so, I don't know of 'est' being pronounced so; I tend to say it as thought rhymed with 'meh.'
So two adjectives involving a color do not change for the gender of the noun they modify... Is this for any two adjectives or just two involving a color?