What does it mean if a fabric is described as colorfast?

When fabric is described as colorfast, it means that it resists fading when exposed to various elements such as light, water, and laundering. A colorfast fabric maintains its original hue and vibrancy, preventing the dye from washing out or changing under different conditions. This quality is particularly important for textiles that are frequently washed or used in bright light, as it ensures the longevity and aesthetic appeal of the fabric.

The other options depict characteristics that are contrary to what colorfast fabric represents. While fading, bleeding during washing, or discoloration signify poor durability and adherence of color, a colorfast fabric stands out by retaining its color integrity over time.