what are the colors purple and gold refer to in Emily Dickinson's line "Blazing in gold and quenching in purple"i mean what do they symbolize

Emily Dickinson's poem, "Blazing in Gold and Quenching in
Purple," is replete with color imagery as the poet personifies the sun as a juggler who
dances, leaps, and frolics throughout the day.  This juggler, the sun, is clothed in
gold and purple, the brightness of the sun and its shadows as clouds touch it.  This
controlling metaphor of the sun as a juggler of a dual-colored costume that is the
interplay of light and dark issues a joyous contemplation of nature as the sun is also
likened to leopards in its darting movement throughout the sky until it finally "stoops"
to the "Otter's Window," the kelp pads in water that otters can peak through, and bids
the meadow goodnight. Dickinson's poem is, thus, a delightful tribute to the regal
beauty of nature with its color imagery since purple and gold are royal
colors.