THE BRASS COAST
People of the Souf
Brass Coast, or "Freeborn" characters hail from the shores and plains of the south-western Empire, with a strong culture in seafaring and commerce.
Their costumes tend to be bright, colourful and often a bit swooshy. As a general rule they do not wear black in their day-to-day, this is reserved for wrapping corpses, and white is the colour of poverty - those that cannot afford dye.
Flame, Dust and Glass
Colour is important to the Freeborn - you're looking for a primarily flame-inspired palette with flashes of contrast here and there, perhaps by building up layers and scarves and wraps.