une blonde foncée
"Blonde woman" in French is "femme blonde."
J'ai des cheveux blonds
Ses cheveux sont blonds.
Blond for a man, Blonde for a woman.
Mes cheveux sont blonds.
dark blue is translated 'bleu foncé' in French
There is a difference, dark blonde has brown tones in it and dirty blonde has ash tones in it.
elle a des longs cheveux blonds
j'ia des cheveux blonds sales
'blonde' (fem.) or 'blond' (masc.). When pronouncing the masculine 'blond', the final 'd' is muted, whereas the feminine 'blonde' is pronounced much in the way English speakers do.
il s'obscurcit
Le sombre