Submitted as a black pattern, I made it light and a few steps more subtle.
Source Andy
A floral background formed from numerous clones of flower 117.
Source Firkin
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
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Alternative colour scheme. Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
The tile this is formed from can be retrieved in Inkscape by selecting the rectangle and using shift+alt+i
Source Firkin
Old China with a modern twist, take two.
Source Adam Charlts
From a drawing in 'A Guide to the Guildhall of the City of London', John Baddeley, 1898.
Source Firkin
Background formed from the original with an emboss effect.
Source Firkin
The green fibers pattern will work very well in grayscale as well.
Source Matteo Di Capua
Fabric-ish patterns are close to my heart. French Stucco to the rescue.
Source Christopher Buecheler
A pattern formed from a squared tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Light gray version of the Binding pattern that looks a bit like fabric.
Source Newbury
A dark pattern made out of 3×3 circles and a 1px shadow. This works well as a carbon texture or background.
Source Atle Mo
The act or state of corrugating or of being corrugated, a wrinkle; fold; furrow; ridge.
Source Anna Litvinuk
Prismatic Snowflakes Pattern 3 No Background
Source GDJ
High detail stone wall with minor cracks and specks.
Source Projecteightyfive
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
A seamless pattern with green and yellow diagonal lines on top of a white dotted background.
Source V. Hartikainen
Prismatic Geometric Pattern Background 2
Source GDJ
Floral patterns will never go out of style, so enjoy this one.
Source Lasma