Actually that is a interesting observation, School bus yellow is a color which was especially formulated for use on Canadian and United States school buses in 1939. The color is now officially known in Canada and the U.S. as National School Bus Glossy Yellow and was originally called National School Bus Chrome. The pigment used for this color was for a long time the lead containing chrome yellow.
My new RX-1 is Park tool blue. Blends perfectly with my work stand.
<table style="width:194px;"><tr><td align="center" style="height:194px;background:url<a href="http://picasaweb.google.com/e.biebighauser/TitusRX1?authkey=Gv1sRgCPXx-K-JrZX0sgE&feat=embedwebsite"><img src="http://lh3.ggpht.com/_BF2v4a8jgKk/SjsULNywXLE/AAAAAAAAABw/hs2mqoH2ft0/s160-c/TitusRX1.jpg" width="160" height="160" style="margin:1px 0 0 4px;"></a></td></tr><tr><td style="text-align:center;font-family:arial,sans-serif;font-size:11px"><a href="http://picasaweb.google.com/e.biebighauser/TitusRX1?authkey=Gv1sRgCPXx-K-JrZX0sgE&feat=embedwebsite" style="color:#4D4D4D;font-weight:bold;text-decoration:none;">Titus RX-1</a></td></tr></table>