Look for Leptinella squalida, aka New Zealand Brass Buttons. This is a very low growing, mat-like groundcover that fills well between pavers. It holds up well to foot traffic and actually forms a soft spongey, pillow-like structure that is very comfortable to walk on with bare feet. Happy in full sun with the occasional watering in our dry summers. It also comes in a rather interesting dark color, called 'Platt's Black'. btw, this groundcover is fully evergreen in our climate.
Leptinella squalida 'Platt's Black'

Thank you for your reply. And sorry to be so slow to thank you. We lost a family member this week (my wife's dad age 70) so I've been otherwise occupied. I checked out your recommendation. But I want something brighter. I'm currently leaning towards creeping thyme as the best option.

One of the best low growing ground covers is Creeping thyme. This versatile plant, Thymus serpyllum, can be used in countless ways to provide color, cut maintenance and its uses in the garden are almost unlimited. Creeping thyme is one of those easy to grow plants that survive nicely with little or no care. It's a low maintenance plant that can take a lot of abuse too!

Uses - there are very few ground covers that can be walked-on, but creeping thyme is one of them. So it makes an ideal ground cover to use between stepping stones, near the patio adjoining walkways or at the base of a rockery. However, those are not the only uses for this versatile low growing ground cover. Because of its low growth habit, it can be used effectively in the foreground of just about any planting in the landscape. It is especially popular to use in spots where the plants can cascade over a rockery or fill-in between evergreen plants.

Growing habit - creeping thyme grows about two to four inches high and can spread up to two or more feet in width. The leaves are very small, but dense and cover the low growing plants. Foliage color varies in shades of light to dark green and the variety 'Woolly' thyme has attractive grayish foliage. The leaf color of the other varieties seems to vary with flower color, the lighter flowering varieties have lighter foliages. Flower colors range in shades of lavender, red, rose, or white. They flower in the late spring and early summer. The plants flower so prolifically, you can hardly see the evergreen leaves below. Creeping thyme is an easy plant to maintain, as it does not tend to take-over and can easily be confined to a specific area.

Location - these versatile plants will grow in full sun, part sun and shade and even full shade. However, they usually do not flower quite as well in full shade, and sometimes tend to grow a little more sparse in the shade.

Propagation - although dividing is the most popular method of propagation, new plants can also be started from seed. Unfortunately, very few companies carry the seed. If you find some, or collect your own seed, it can be sown directly into the garden anytime between may and august.

First, very sorry for your family's loss and no worries about taking your time to respond. Many posters never bother to come back or comment after posting their questions.

LOL!! Too bad it doesn't look like that 95% of the time (I'd be willing to bet that photo was photoshopped, as well). Be prepared for a lot of dieback in winter - thyme and our damp PNW winters don't seem to get along very well. And it does grow out over the top of the pavers, which some folks are not fond of. I might suggest you look at elfin thyme, Thymus praecox 'Minus' aka Thymus serpyllum 'Elfin'. This is a very dense, low growing form of thyme with purple flowers that seems to suit your very narrow (1") application between pavers better than the larger growing thymes that often look messy unless the spacing is more generous.

FYI, when the thyme is in bloom, bees will make it rather awkward to walk on the pavers - they will visit in large numbers.

Blue star creeper does stands up well to the soggy PNW winters in my shady back yard, but I don't know how robust it is in full sun. My two varieties of thyme have struggled in the same yard and do die back a fair bit each winter, leaving ugly patches of wiry stems that are quickly filled in by late spring. Perhaps they would work better in a sunnier environment, but I definitely agree with gardengal's cautionary guidance.