Lightfastness refers to the fabric's ability to resist color changes when exposed to light, especially sunlight. This is an important property since furniture is often placed in areas where it can be exposed to direct or indirect sunlight, which can lead to fading or changes in color over time. Lightfastness is assessed on a scale from 1 to 8, where 8 indicates the highest degree of resistance to light-induced fading. A fabric with a high lightfastness value, for example, 6-8, is ideal for furniture in sunny rooms or close to windows, as it will retain its color better over a longer period. Textiles with lower lightfastness values, such as 1-3, are more prone to fade quickly and are better suited for areas with less direct light.