The birds in the picture show DOMINANCE because of they are up close and focused. As opposed to the trees SUBORDINATE in the background. The birds show COLOR because of they are more vibrant compared to the colors of the trees in the background.
This is one variety of the Black-and-Yellow Broadbill. They range in color from black and yellow to black with some yellow and some pink and then some are just black and pink, like this beauty! They do all have the bright blue bill, however.