I would like to change the background color in the Kendo Scheduler

I am using a Kendo MVC Scheduler control and it looks like this:

You can see all the background colors are blue. I would like to change this default to a different color. I cannot find a way to do this. I thought maybe this styling would work in my view, but it doesn't:

<style>
    .k-event {
        background: red;
        background-color: red;
    }
</style>

This is how I have the Scheduler defined:

@(Html.Kendo().Scheduler<LaibeManpower.Entities.OnCallSchedule>()
        .Name("OnCallSchedule")
        .Date(new DateTime(System.DateTime.Now.Ticks))
        .Height(800)
        .Editable(false)
        .Pdf(pdf => pdf
            .FileName("OnCall Schedule.pdf")
            .ProxyURL(Url.Action("PdfExportSave", "OnCallSchedule"))
        )
        .Toolbar(t => t.Pdf())
        .Views(views =>
        {
            views.WeekView();
            views.DayView();
        })
        .Selectable(true)
        .DataSource(d => d
            .Model(m => {
                m.Id(f => f.RowId);
            })
            .ServerOperation(true)
            .Read(read => read.Action("ReadSchedule", "OnCall").Data("getAdditionalData"))
        )

What I had to do was to put the following in a separate .CSS file and load it. Then it worked.

.k-event {
        background-color: red;
    }