While it can appear slightly yellowish or even reddish depending on its temperature, the name "white dwarf" comes from its overall white color.

Here's why:

* They're incredibly hot: White dwarfs are the remnants of stars like our Sun, but they've exhausted their nuclear fuel. They are incredibly hot, ranging from 25,000 to 100,000 degrees Celsius.

* They emit primarily blue and ultraviolet light: Due to their high temperature, white dwarfs primarily emit blue and ultraviolet light. However, our eyes are more sensitive to the blue and green wavelengths, which gives them a predominantly white appearance.

* The color changes over time: As a white dwarf cools over billions of years, it will eventually become dimmer and shift towards a redder color.

So, while you might see some variation in the color of a white dwarf, its characteristic color is white.