Create a list in Reminders called "Light color" with the "L" capitalized and use Siri to add reminders to that list. The title of the reminder is the color your Philips hue lights will turn. Only basic color names are supported.
If
New reminder added to list
This Trigger fires every time a new reminder is added to the list you specify.
Then
Change color
This Action will change the color of your hue lights. NOTE: Accepts color names and CSS hex color values. Defaults to white if no color match is found. NOTE: not compatible with hue lux bulbs.
Explore more great ways to automate Philips Hue and iOS Reminders