The urination was irrelevant. Semen varies in color depending on diet and exercise. Darkening can be an indication of a low level infection - prostatitis or urethritis. Usually, it develops an offensive odor with infection.
Do notice whether there is any discomfort urinating or a foul smell while urinating or ejaculating. Most men do develop urethritis a time or so during their lives. It is usually nothing serious but it will not go away by itself. Keep an eye on it (nose on it?) and if it worsens see your doctor. The cure is usually a ten day regimen of anti-biotics. Ejaculation is good for it!!! Use a condom for a while or you may cause a vaginitis in your g/f or re-infect yourself.
Posted: 27 Sep 23:23