The moon doesn't have its own light! It reflects light from the sun. So, whether the moon appears dark or bright depends on the position of the sun, the Earth, and the moon.

While it's possible the moon could have been in a darker phase during the Apollo 11 landing, we don't know for sure. The exact phase of the moon is not a detail that's often reported or discussed.

If you're interested in finding out the moon's phase at the exact time of the landing, you could consult a lunar calendar or an astronomy resource!