The pale gold-coloured tie stands out against the white shirt and finely patterned or textured-looking brown surroundings. Jacket and waistcoat look closely related in colour, while darker brown welts mark the pockets. A small lapel detail sits higher at the side. One hand stays near the centre and the other in a trouser pocket. The crop includes the upper trousers but neither the lower hem nor shoes. Gold-coloured describes the visible tie shade, rather than a material property, fibre or explanation of what produces its appearance.
Compare this picture with a similarly quiet brown candidate wearing a dark tie. You can identify whether the pale centre or continuous brown surface is your main wish. Change only the tie on the real outfit first, before choosing different buttons or an additional square. The contrasting pocket welts already supply small dark markers, making another contrast a separate deliberate choice. Photograph the candidate without its jacket too if that is how you expect to use the waistcoat. Final cloth identification and care must come from the actual garment’s information, not its colour in the image.