Can't use custom field to change card color

[Jorge Torija Zane]

Hello! This is my first post. I want to change card colours on a board but when I try to use a custom field "fecha de vencimiento" (spanish for "due date") doesn't appear in the list of custom fields in the JQL. 

JQL: 

Custom field in a card: 

Is there any special configuration for the custom field that I'm missing? 

Thanks

[Hernan Halabi - Elite IT Consulting Group · Accepted solution]

Hello @Jorge Torija Zane I believe that even though you are in spanish you need to use due date or due (both should be supported options for the same field) and with that you will be able to do what you want

[Jorge Torija Zane]

Yo were right! Thank you very much. The field was "due" (I've tried duedate before but didn't worked) 

[Alexander Pappert]

https://support.atlassian.com/jira-software-cloud/docs/customize-cards/

One color per JQL query. You can specify whatever queries you wish. Issues that do not match any of your JQL queries will be shown in grey.

see this for JQL

https://community.atlassian.com/t5/Jira-Core-questions/Color-code-cards/qaq-p/1505388