Snow and ice usually appear white because visible light is white. Frozen water particles are translucent and reflect sunlight giving the snow a white appearance. However, due to environmental factors, snow will also appear in different colors.
For example, you can see the “watermelon red” snow near the glacier. This is because there is a bright red freshwater algae in the cool fresh water of the glacier. Blood falls can also be seen in the Taylor Glacier in Antarctica. This is a landscape created by the leakage of iron-rich brine from an ancient reservoir under a glacier. When the salt water is oxidized, you can see the bright red waterfall.
Thick snow may also appear blue. According to the National Snow and Ice Data Center, if you dig a hole in the snow and look down the hole, you may see blue. Generally, blue light is a relatively long light that can pass through ice or snow. Only blue light can penetrate the ultra-deep snow ditch and appear blue.