An informal name
Fire engine red is the bright red painted on fire trucks in many countries. In North America people also say "fire truck red." It is not one exact shade, and each fire service can pick its own paint. The code #CE2029 comes from the comparison site FindTheBest, which matched it to Pantone 1795 at 96%. You can find this in the Wikipedia article on fire engine red.
In Britain, a coachbuilder that makes fire engines named Post Office Red, British Standard color 538, as its most popular shade. That paint is a darker cherry red, close to #9D383A.
The case for yellow
Red is a tradition, but it is not the easiest color to see. Around 1965, a study in Coventry, England, found that yellow stayed easier to spot under the street lights of that time. In the United States, the optometrist Stephen Solomon pushed for lime yellow fire trucks from the 1970s on. His 1995 paper with King found fewer serious crashes for the more visible trucks. Many smaller American towns now use yellow, while big city departments mostly kept red.
For other strong reds, compare candy apple red and rosso corsa, the racing red of Italian cars.