If you were standing on a planet orbiting a red dwarf star and had human vision, the starlight would appear red but relatively dim compared to the light from our Sun. Red dwarf stars are smaller and cooler than our Sun, and they emit a larger proportion of their light in the red part of the spectrum.
When we observe stars, their apparent brightness depends on their distance from us, their intrinsic luminosity, and the amount of light reaching us. Red dwarf stars are typically dimmer than our Sun, which means they emit less total light energy. However, because they emit a significant portion of their light in the red wavelengths, the light you would perceive from a red dwarf star would appear red to your human vision.
The perception of brightness would depend on several factors, including the distance between the planet and the red dwarf star, the planet's atmosphere, and any potential interference from nearby objects or atmospheric conditions. However, generally speaking, compared to sunlight on Earth, the starlight from a red dwarf star would appear dimmer due to the lower intrinsic luminosity of red dwarfs.
It's worth noting that the specific details of the star's appearance, including its color and brightness, can vary depending on the specific characteristics of the red dwarf star, such as its temperature and composition. However, in the case of typical red dwarf stars, the light would primarily appear red and relatively dim compared to daylight on Earth.