The green fibers pattern will work very well in grayscale as well.
Source Matteo Di Capua
Stefan is hard at work, this time with a funky pattern of squares.
Source Stefan Aleksić
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
Prismatic Curved Diamond Pattern 3 No Background
Source GDJ
Prismatic Geometric Pattern Background
Source GDJ
The image depicts a seamless pattern of a tortoise in tortoiseshell (hexagon).
Source Yamachem
Sounds like something from World of Warcraft. Has to be good.
Source Tony Kinard
From a drawing in 'Heroes of North African Discovery', Nancy Meugens, 1894.
Source Firkin
Prismatic Snowflakes Pattern No Background
Source GDJ
This is a remix of "geometrical pattern 01".
Source Yamachem
Dark, crisp and subtle. Tiny black lines on top of some noise.
Source Wilmotte Bastien
Prismatic Polka Dots Mark II 3 No Background
Source GDJ
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Tiny circle waves, almost like the ocean.
Source Sagive
A slightly more textured pattern, medium gray. A bit like a potato sack?
Source Bilal Ketab
You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova
Super simple but very nice indeed. Gray with vertical stripes.
Source Merrin Macleod
Tweed is back in style – you heard it here first. Also, the @2X version here is great!
Source Simon Leo
A seamless pattern formed from a sports car on clker.com. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Hexagonalist Pattern No Background
Source GDJ
Brushed aluminum, in a bright gray version. Lovely 2X as well.
Source Andre Schouten
Used correctly, this could be nice. Used in a bad way, all hell will break loose.
Source Atle Mo