How long does it take to perceive color? Are some colors perceived more quickly than others?
It takes about 1/10 of a second to perceive any visual stimulus. But that is the latency for the signal to reach awareness. But the visual system can follow changes, such as flicker, at very fast rates depending on their color and intensity. So even though there is a lag for the signal to reach consciousness, the visual system itself can follow rapid change. Your question is hard to answer because the answer depends on the state of adaptation of the eye and the intensity of the flash of light. It really doesn’t matter how brief a flash of light is if it is bright enough because the response of the eye is accumulated over time. But it is safe to say that under certain certain laboratory conditions, one can show that red and green are perceived more quickly than blue and yellow and that white/black differences are the fastest. But under normal viewing conditions, these differences will not be observed.
