Yes that is rather odd and seems to be something that is specific to your theme. A set of rules like this should help:
#tribe-events h1,
#tribe-events h2,
#tribe-events h3,
#tribe-events h4,
#tribe-events h5,
#tribe-events li,
#tribe-events dt,
#tribe-events dd,
#tribe-events a,
#tribe-events p {
color: #666;
}
Your theme appears to support custom CSS so you could try adding the rules to the appropriate field there, or else you could set up a custom tribe-events.css stylesheet (following the instructions in our Themer’s Guide) – does that help?