Simple gray checkered lines, in light tones.
Source Radosław Rzepecki
This seamless background image should look nice on websites. It has a dark blue gray texture with vertical stripes, it tiles seamlessly and, like all of the background images here, it's free. So, if you like it, take it!
Source V. Hartikainen
Small dots with minor circles spread across to form a nice mosaic.
Source John Burks
A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
Love the style on this one, very fresh. Diagonal diamond pattern. Get it?
Source INS
This is a remix of "geometrical pattern 01".
Source Yamachem
Everyone loves a diamond, right? Make your site sparkle.
Source AJ Troxell
Super simple but very nice indeed. Gray with vertical stripes.
Source Merrin Macleod
Dark Tile-able Grunge Texture. I think this texture can be classified as grunge. It's free and seamless, as always.
Source V. Hartikainen
Looks like a technical drawing board: small squares forming a nice grid.
Source We Are Pixel8
It’s like Shine Dotted’s sister, only rotated 45 degrees.
Source mediumidee
Light gray version of the Binding pattern that looks a bit like fabric.
Source Newbury
Bumps, highlight and shadows – all good things.
Source Badhon Ebrahim
Recreated from a pattern found in 'Az Osztrák-Magyar Monarchia irásban és képben', 1882. To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
From a drawing in 'Real Sailor-Songs', John Ashton, 1891.
Source Firkin
In the spirit of WWDC 2011, here is a dark iOS inspired linen pattern.
Source Atle Mo
Luxurious looking pattern (for a T-shirt maybe?) with a hint of green.
Source Simon Meek
Remixed from a drawing that was uploaded to Pixabay by ractapopulous
Source Firkin
This is a grid, only it’s noisy. You know. Reminds you of those printed grids you draw on.
Source Vectorpile
Derived from a PNG that was uploaded to Pixabay by nutkitten
Source Firkin
The tile this fill pattern is based on can be had by using shift+alt+i on the rectangle.
Source Firkin
Prismatic Curved Diamond Pattern 8 No Background
Source GDJ
Thin lines, noise and texture creates this crisp dark denim pattern.
Source Marco Slooten
Classy golf-pants pattern, or crossed stripes if you will.
Source Will Monson