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<html><body><h2 style="background-color:rgb(0,0,0);color:white">Background-color set by using rgb(0,0,0)</h2><h2 style="background-color:rgb(90,90,90);color:white">Background-color set by using rgb(90,90,90)</h2><h2 style="background-color:rgb(128,128,128);color:white">Background-color set by using rgb(128,128,128)</h2><h2 style="background-color:rgb(200,200,200);color:white">Background-color set by using rgb(200,200,200)</h2><h2 style="background-color:rgb(255,255,255);">Background-color set by using rgb(255,255,255)</h2></body></html>