A group of seven gangsters has names based on different shades of the colours of the rainbow. On an afternoon after a successful heist, Navy goes out for a walk. When she comes back, she realizes that Lavender has set up a prank again. Lavender wishes her a happy birthday and tells her that her gift is in her locker. However, he has changed the passcode to her locker, and the new code is with one of the other gangsters. The other five gangsters are standing in a row, with a piece of paper each, which has a clue on one side and a three-digit number on the other side. Navy smiles and thanks Lavender for this thoughtful gift. Using the following clues, can you guess her new locker number?

Crimson?175175: I am somewhere to the left of the person with the correct passcode.
Baby?323323: This passcode is not at either of the ends.
Verdant?596596: This passcode is three places away from the correct passcode.
Canary?777777: This passcode is next to the correct passcode.
Tangerine?987987: This passcode is in the middle.