Here's why your question is a bit tricky:
* Stars within Capricorn have different colors and temperatures: The stars in the constellation Capricorn vary in color and temperature. Some are red giants (cooler), while others are blue-white giants (hotter).
* Constellations are not solid objects: Constellations are just a grouping of stars that we see as a pattern. They don't have a singular color or temperature as a whole.
To understand the color and temperature of a specific star within Capricorn, you would need to specify which star you're interested in. You can find information about individual stars in Capricorn on astronomical websites like SIMBAD or Stellarium.