The counter decides more than the wall does
A backsplash sits directly on top of the counter with no gap and nothing between them, so those two surfaces are compared constantly and at close range.
A blue against a warm cream quartz reads completely differently from the same blue against a cool gray one, and the counter is the element nobody replaces to fix a tile choice. Taking the tile sample to the counter rather than the other way round is the only reliable order to work in.
Stainless is the third color in the room
Most kitchens carry a run of stainless steel across the range, the hood and the dishwasher, and stainless is not neutral: it is a cool gray with a blue cast of its own.
A cool blue next to it doubles up and the wall can go cold. A warmer or greener blue holds its own against it. It is the element people forget because it arrives as an appliance rather than as a finish.
Crackled glaze, and where it earns its place
Crackle is the largest specialty finish in this range: a glaze fired so its surface develops a network of fine hairline cracks.
In a kitchen that does something specific. The cracks catch the blue at several depths, so a wall never reads as one flat plane of color even under the hard downlights kitchens are usually fitted with. A flat blue under a strip of task lighting is the version that looks cheapest.
Sheets carry this range
Mosaic sheets are the largest product type here, well ahead of field tile, which is unusual for a color with plenty of subway formats available.
It is the cautious route into a colored kitchen. A sheet breaks the blue into small pieces with joint between them so the color softens into texture, where a wall of 4x12 in the same blue is an entirely different level of commitment. Blue backsplash tile is the wider range including the pieces that are not kitchen-tagged.
The band, and where it stops
3x12 and 12x12 lead the sizes, then 4x12, 12x24, 4x8, 24x48, 3x6 and 2x6.
The standard gap from counter to wall cabinets is around 18 inches. A three inch tile divides that into six courses with no cut; a four inch one leaves half a course to place somewhere. On a strong color that leftover is more visible than it would be on a white, because the eye is already following the wall.
Crackle, satin and leather
Behind the plain glossy and matte faces sit crackled, satin, leather and textured pieces, plus a group whose finish field reads anti-slip.
Leather is the surprise on a colored kitchen wall: a brushed low-sheen face with texture kept in it, normally seen on dark stone. On a deep blue it gives a wall that changes with the light without the mirror a gloss produces, which under kitchen downlights is a real difference. The bluestone look pieces here are a separate matter, set out on blue backsplash tile.
Where a blue kitchen wall works
Against warm wood, brass and cream it belongs immediately. Against white cabinets and chrome it needs to be a deeper or greener blue to avoid reading cold, and against a busy stone counter it usually needs to be the quietest thing in the room.
Kitchen backsplash tile is the same wall in other colors, and blue tile and mosaic the color across the catalog.