Add an IFTTT contact in your iPhone with the email address trigger@recipe.ifttt.com. Tell Siri to send an email to IFTTT and say you want #hue as the subject when prompted.
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Send IFTTT an email tagged
Send IFTTT an email at trigger@applet.ifttt.com with a hashtag in the subject (e.g. #IFTTT) and this Trigger fires. You can optionally add a single file attachment (up to 30MB) and IFTTT will create a public URL to the file as an Ingredient.
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