This is so important. My calendars are a mess right now and I want to easy remember which category my calendar items have.

It's pretty disappointing that this issue still hasn't been addressed as of August 2026. Color coding is essential to usability, and frankly these color options suck. Is it really that hard to give us a color wheel? I might be stuck using Google Calendar because I just can't get these color options to work with the system I already utilize daily.

I am just moving to proton - but honestly I am lost without this feature and categorize meetings in wrong colors often (similar color, but not remembering the exact one...)
Considering moving to mailbox.org right now

To organise agenda topics the colors need to have a meaning for me

This would be a game changer.
I feel so disorganized without it.

Still not solved? What a pity!

Being able to customize the calendar color labels with named event types would be very helpful.

I see that color-coding is available in Proton Calendar. Like others below, I find it unhelpful that naming the categories still is not possible. This means the user must remember the meaning of each color, with no other cues. I assume that filtering or searching by category will be an option, eventually. Choosing categories by name will be key when that feature arrives.

I'd also like the ability to change the labels on the colors so instead of "carrot" or "plum", I can have labels like "important", "work", "appointment", "travel time", etc.

I'd also like to be able to change / add the colors with a standard color-picker model, rather than the pre-determined color palette.

Mandatory and critical to be able to label the events in color (which is available) and to assign to this categories. This should work on IOS and ANDROID as well.

I'd like to classify the colors in Proton Calendar like "Meeting", "Office", etc...

2/20/25 We have the color code option in Proton Calendar now...what I would love to do is be able to change the name of the color to an "event category" of my choosing. So that when I go to add the color code to my event, I can remember which code I had opted to use for specific event types.

please reduce clicks by having the colors immediately available when creating or editing an event.

please allow colors to be labeled so it's easier to remember which blue means what

please allow a way to select all imported outlook events by label so they can be color coded in your system all at once. I.E. identify all medical events to color code for the Proton Calendar.

Please offer the option of retaining the colors for past events - it's hard to find events by the small color bar when they have been grayed out.

Thank you!!

Not sure if you (Proton) read these after the fact but just wanted to say THANK YOU! Thank you for releasing this feature and functionality of the ability to color code events in the Proton Calendar. It has made the family much happier. :-)

Color labels feature like in Google Calendar would be pretty useful for me

Is there an ETA on getting this feature? We really need this and will only help with the adoption of Proton away from the (not so) "free" calendars from Google and all privacy pillagers.

This is indeed critical. It also stops me from using the calendar,and prefer to use Google. you need to be able to see at a glance what appointment is which. different color coding helps.

I would also love to see custom colours attached to a searchable label function. For example I can tag or label an event as "appointment" or "work" and then filter or search on that label.

The workaround of using separate calendars is also not ideal, since it removes the ability to easily share a unified calendar with others.

Before protoMail I used Google Calendar, and I got into the habit of labeling each event with a color for each category. Today, I'm between a paper calendar and your calendar, and I want to use this here as well.

In the end, of course, it's the same thing, but I don't think it's really helpful to have a dedicated calendar for my out of the ordinary (but important) appointment that I have less than 10 times a year, or a dedicated calendar for my running session.

It will work, but I don't want to juggle 5 or 6 different calendars when I put in a new event. It may be a gimmicky feature for most people, but I find it really useful when I just want to know at a glance which event is what.

This is critical. Important if multiple lables/categories are selected then color the event/entry with all the colors of the laabels. Like stripes etc.