Unable to update color field for project

I used to be able to change the project color using the API, but this API request no longer works. Instead, it returns a 500.

The request that used to work:
PUT https://app.asana.com/api/1.0/projects/1127755750165821
Body:

{
  "data": {
    "color": "dark-green"
  }
}

Response

{
    "errors": [
        {
            "message": "Oops! An unexpected error occurred while processing this request. The input may have contained something the server did not know how to handle. For more help, please contact api-support@asana.com and include the error phrase from this response.",
            "phrase": "33 clumsy lambs krump slowly"
        }
    ]
}

What’s strange is if I try to update the color to green, I get a 400 with the following message:

{
    "errors": [
        {
            "message": "color: Must be one of {dark-blue, dark-brown, dark-green, dark-orange, dark-pink, dark-purple, dark-red, dark-teal, dark-warm-gray, light-blue, light-green, light-orange, light-pink, light-purple, light-red, light-teal, light-warm-gray, light-yellow, none}, not: green",
            "help": "For more information on API status codes and how to handle them, read the docs on errors: https://developers.asana.com/docs/errors"
        }
    ]
}

This is saying that dark-green is a valid option…

I’m not sure why you’re getting that 500 error, but Asana can tell more detail from the error phrase you posted.

@AndrewWong

FYI I updated the title of your post - you had put “Unable to update due_on” but your post is regarding the color parameter.

1 Like

Did you get any response from asana? I’m having the same issue.
error 500 or just not updating the color of project

I have not received a reply yet.