(n.) The quality or state of being swarthy; a dusky or dark complexion; tawniness.

Egyptian darkness Erebus blackishness blackness dark darkishness darkness darkness visible darksomeness dead of night duskiness duskness funereality graveness intense darkness lightlessness moonlessness night obscure obscure darkness obscurity pitch-darkness pitchy darkness sadness soberness sobriety somberness starlessness sunlessness swarth swartness tenebrosity tenebrousness the palpable obscure total darkness velvet darkness