a blue dress in french is " une robe bleue".
to dress up (to put on one's best or most formal clothing) is "bien s'habiller" or "mettre ses plus beaux habits" in French.
l'heure bleue
'des jeans' or less frequently 'des blue-jeans'
j'ai des rideaux bleus
soixante stylos bleus
une robe bleue
The French word for dress (noun) is "une robe" (fem.). The verb "to dress" is "habiller".
A cocktail dress is 'une robe de cocktail' in French.
"A white dress" in French would be "une robe blanche."
habille-toi
A red dress is 'une robe rouge' in French. Robe is a feminine noun.
To Say God is blue in French is-Dieu est Bleu-
blue
blue
robe jaune
robe blanche
belle robe