3 ms·

I had to read one of the comments below to find out that one of the objects is red instead of green. I'm red-green "colorblind" (about ten precent of males are

• barrkel 17y ago
  I'm red/green colour-blind too, but it relates to contrast. Red doesn't stand out as vibrantly as other colours do, that's all. For example, in dim light, I can find it difficult to tell the difference between brown and red on a snooker table. But close up, or in bright lighting, there's no problem. For example, there's a red, a green and a brown ball in this picture: http://upload.wikimedia.org/wikipedia/commons/e/e6/Snooker_table.jpg http://upload.wikimedia.org/wikipedia/commons/e/e6/Snooker_t... I can tell the difference between the red and the green more easily than the red and the brown. If the red wasn't visible on the table for comparison, and the brown wasn't near its home spot on the centre of the baulk line, I wouldn't be sure it's not red. I doubt that 10% of males have the same level of difficulty distinguishing red from green as you indicate.