56,000 guests. Dress code: blue.

Opening day at Dodger Stadium started with a scene that was decidedly L.A.: a traffic jam. Dedicated fans sat for miles to witness the start of their team’s 50th season in town.

And naturally, this being L.A., plenty of fans used the time to finish primping for the big party, plastering star stickers on their faces and tying blue and white ribbons in their hair. One girl sitting shotgun in a Civic checked her blue spiked wig in the mirror; the driver was content with a standard Dodgers cap. A little boy wearing a white jersey waved a team flag out the window at three guys in a monster truck. Some middle-aged men in a Volvo passed what looked suspiciously like a flask. They didn’t seem to care what they were wearing.

This wasn’t a day to strut that famously iconoclastic L.A. style.

Dodger blue, and Dodgers merch, ruled. Fans sported team tees, jerseys and jackets -- all together, a festive sight. But anyone can buy logo gear during the seventh-inning stretch. The best game-day outfits tempered that vital team spirit with a little personality.

On the Club Level, the put-together spectators watched Brad Penny pitch 6 2/3 scoreless innings, but the feeling was more boardroom than ballpark. Men and women wore straight-from-the-office conservative suits and tailored dresses -- except for Taylor Carter, an analyst with Lehman Bros., who came from New York specifically for the game. In jeans, a button-down shirt and printed scarf, she was the luxury floor’s casual crasher.

“I tried for Dodgers blue,” she said of her black and white J. Crew scarf.

Down in the seats were some of the day’s best-dressed. Patrick Martin showed his support with a blue striped shirt by Tommy Hilfiger and a suede team hat. The look is part of Martin’s vast selection of Dodgers duds, which he never wears twice. Amy Donahue’s tissue-thin navy cardigan, jeans and team hat were sweet and sporty. The accessories -- a leopard-print tote and striped ballet flats -- earned her a double for stylish effort.

At the Loge Level, it was more of an errors situation. Fans bared bellies (both six-pack and beer) in open jerseys without undershirts. Steeee-rike!

Some, like Toni Leigh, could have been waiting in line at a Hollywood club. “I’m not a usual Dodger fan,” she said, wearing flashy gold sunglasses, a metallic pink bag and a gun-buckle belt.

Is it even legal to wear firearms in a crowded ballpark?

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erin.weinger@latimes.com