magenta /məˈd͡ʒɛntə/adjective 1noun 1forms 3 adjective1 •Having the color of fuchsia, fuchsine, light purple. noun1 •A color which is close to the equal mixture of red and blue which is an additive secondary color but a subtractive primary color evoked by the combination of red and light blue.Mrs Dibble's face blazed with a magenta uprush of blood at that ultimatum and she screamed, "You dare try to do me out of my gin too! You dare!" — 1950 formsmagentas · more magenta · most magenta