Lovely clematis in your photo. The dark background gives you so many choices. I have Hagley in morning sun, north east location, and it has stayed a nice pink with little to no fading until the blooms are spent. Not knowing your zone I don't know if you would have the same results.

There are some brighter pinks if you want pink. While you indicate you would like large flowering clematis a smaller flower or a tulip shape one can be quite attractive and a nice counterpoint to the large flowering ones. Duchess of Albany is a bright pink with a red bar. It is a type 3 and long blooming plant for me.

Search for clematis images to see many varieties and choose one you like that will look nice with your others. One I like is Elsa Spathe for its color and long blooming time.

Also looking at online clematis sales sites can give you an idea of the varieties that you might not find for sale in your local area.

I have over 90 clematis in my collection and appreciate them all.

I have a range of reds, pinks and whites against a hemlock hedge which is quite dark green. They include Rebecca (red), Piilu (pink) and John Huxtable (white), but I can't remember the names of most of the pinks offhand. They get sun from just after sunrise until about 2 PM, and I haven't noticed any fading, but this is the first summer in the ground for several of them.

John Huxtable

Piilu (overexposed photo, but flowers weren't faded)

Rebecca

Alternatively, consider some of the lavender flowers or purple and white combos like Clematis 'Venosa Violacea', either of which will show up well against the dark brown of your building.

Adding location info to your profile will help (it will show up in your posts), since the type of climate that mnwsgal and I have may not be the same as yours and degree of fading often relates to sun intensity. Here's how:

Go to Your Houzz in upper right of every page, click Edit Profile, and on the left side click advanced settings. Well down the advanced settings page is a blank labeled Climate Zone for Garden Forums along with a link to find your zone.

If you add info on your state or the nearest large city you will get even better information since zone only relates to average coldest winter temperatures.

Then return to the top of the page and click Done Editing.