24 in by 30 in (600 mm by 750 mm) CanAm Highway shield. The outside border has a width of 1 (1/16 in) and a color of black so it shows up; in reality, signs have no outside border. Colors are from <a rel="nofollow" class="external autonumber" href="http://mutcd.fhwa.dot.gov/kno-colorspec.htm">[1]</a> (Pantone Blue 294, and Red 187), converted to RGB by <a rel="nofollow" class="external autonumber" href="http://www.reeddesign.co.uk/test/pantone2rgb.html">[2]</a>.
<a href="//commons.wikimedia.org/wiki/User:Ltljltlj" title="User:Ltljltlj">Ltljltlj</a>
<span class="int-own-work" lang="en">Own work</span>