Might not be super subtle, but quite original in its form.
Source Alex Smith
Prismatic Hexagonalist Pattern No Background
Source GDJ
Hey, you never know when you’ll need a bird pattern, right?
Source Pete Fecteau
Derived from a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Sort of like the back of a wooden board. Light, subtle, and stylish, just the way we like it!
Source Nikolalek
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
A seamless texture of a rough concrete surface.
Source V. Hartikainen
The base gradient edited so now more details are rendered.
Source Lazur URH
Classic vertical lines, in all its subtlety.
Source Cody L
Prismatic Basic Pattern 2 No Background
Source GDJ
From a drawing in 'Resa i Afrika, genom Angola, Ovampo och Damaraland', P. Moller, 1899.
Source Firkin
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
A pattern derived from repeating unit cells each derived from part of a fractal rendering in paint.net.
Source Firkin
Prismatic Groovy Concentric Background 5
Source GDJ
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
Feel free to use this seamless background texture as a background on a web site. It's colored in a light pink color and is seamlessly tile-able.
Source V. Hartikainen
Derived from an image that was uploaded to Pixabay by Darkmoon1968
Source Firkin
A comeback for you: the popular Escheresque, now in black.
Source Patten
Dark squares with some virus-looking dots in the grid.
Source Hugo Loning
Snap! It’s a pattern, and it’s not grayscale! Of course you can always change the color in Photoshop.
Source Atle Mo
If you’re sick of the fancy 3D, grunge and noisy patterns, take a look at this flat 2D brick wall.
Source Listvetra
This one is rather fun and playful. The 2X could be used at 1X too!
Source Welsley
Prismatic Polka Dots Mark II 2 No Background
Source GDJ
A subtle shadowed checkered pattern. Increase the lightness for even more subtle sexiness.
Source Josh Green
Here's a quite bright pink background pattern for use on websites. It doesn't look like a real fur, but it definitely resembles one.
Source V. Hartikainen
Did anyone say The Hoff? This pattern is in no way related to Baywatch.
Source Josh Green
Prismatic Curved Diamond Pattern 3 No Background
Source GDJ