Cute Young Blonde Girl With Blue Eyes And A Necklace In The Nature At The Tree Above The Sea On A Sunny Day

Uranus - 18.38 – 20.08 - 4.04 – 3.39
Neptune - 29.77 – 30.44 - 1.54 – 1.47
The actual brightness of sunlight that would be observed at the surface depends also on the presence and composition of an atmosphere. For example Venus' thick atmosphere reflects more than 60% of the solar light it receives. The actual illumination of the surface is about 14,000 lux, comparable to that on Earth "in the daytime with overcast clouds".
Sunlight on Mars would be more or less like daylight on Earth wearing sunglasses, and as can be seen in the images taken by the rovers, there is enough diffuse sky radiation that shadows would not seem particularly dark. Thus it would give perceptions and "feel" very much like Earth daylight.