To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
From a drawing in 'Cowdray: the history of a great English House', Julia Roundell, 1884.
Source Firkin
Embossed lines and squares with subtle highlights.
Source Alex Parker
Abstract Stars Geometric Pattern Prismatic No Background
Source GDJ
A playful triangle pattern with different shades of gray.
Source Dimitrie Hoekstra
A nice and simple gray stucco material. Great on its own, or as a base for a new pattern.
Source Bartosz Kaszubowski
Derived from a PNG that was uploaded to Pixabay by nutkitten
Source Firkin
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Nice little grid. Would work great as a base on top of some other patterns.
Source Arno Gregorian
Background Wall, Art Abstract, Blue Well & CC0 texture.
Source Ractapopulous
Prismatic Abstract Geometric Background derived from an image on Pixabay.
Source GDJ
Prismatic Snowflakes Pattern No Background
Source GDJ
Dare I call this a «flat pattern»? Probably not.
Source Dax Kieran
The first pattern on here using opacity. Try it on a site with a colored background, or even using mixed colors.
Source Nathan Spady
This is the remix of "blue wave-seigaiha".The image depicts a seamless pattern of the front upper part of Japanese five yen coin which is used currently.This design represents a rice with ripe golden ears.
Source Yamachem
Turn your site into a dragon with this great scale pattern.
Source Alex Parker
Prismatic Curved Diamond Pattern 6 No Background
Source GDJ
Very simple, very blu(e). Subtle and nice.
Source Seb Jachec
A seamless background pattern of dark brown wood planks.
Source V. Hartikainen
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
With a name like this, it has to be hot. Diagonal lines in light shades.
Source Isaac
A background pattern with blue on white vertical stripes.
Source V. Hartikainen
Can never have too many knitting patterns, especially as nice as this.
Source Victoria Spahn