The color of a star is determined by its surface temperature. The hotter a star, the shorter the wavelength of light it emits, and the bluer it appears. The coolest stars are red, followed by orange, yellow, white, and blue. The hottest stars are white or blue-white.

Here is a table summarizing the colors of stars based on their surface temperatures:

| Surface Temperature (K) | Color |

|------------------------|-------|

| <3,500 | Red |

| 3,500-5,000 | Orange |

| 5,000-6,000 | Yellow |

| 6,000-7,500 | White |

| >7,500 | Blue or blue-white |

This table is approximate, and there can be some variation in the colors of stars at the edges of each temperature range. However, it generally summarizes the relationship between stellar color and surface temperature.