A yellow tiled background... Blurriness, bokeh effect and rectangles pattern in one mix.
Source V. Hartikainen
The green fibers pattern will work very well in grayscale as well.
Source Matteo Di Capua
A bit of scratched up grayness. Always good.
Source Dmitry
From a drawing in 'Gately's World's Progress', Charles Beale, 1886.
Source Firkin
A re-make of the Gradient Squares pattern.
Source Dimitar Karaytchev
Not sure if this is related to the Nami you get in Google image search, but hey, it’s nice!
Source Dertig Media
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
From a design in 'Storia del Palazzo Vecchio in Firenze', Aurelio Gotti, 1889.
Source Firkin
One more brick pattern. A bit more depth to this one.
Source Benjamin Ward
It’s like Shine Dotted’s sister, only rotated 45 degrees.
Source mediumidee
Prismatic Floral Background No Black
Source GDJ
The image is a seamless pattern which is derived from a vine .Consequently, the vine got like dots via vectorization.The original vine is here:jp.pinterest.com/pin/500744052301410188/
Source Yamachem
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i
Source Firkin
Prismatic Rounded Squares Grid 3 No Background
Source GDJ
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Groovy Concentric Background 4 No Black
Source GDJ
The image is a remix of "edo pattern-samekomon".I changed the color of dots from black to white and added BG in light-yellow.
Source Yamachem
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
From a drawing in 'Navigations de Alouys de Cademoste.-La Navigation du Capitaine Pierre Sintre', Alvise da ca da Mosto, 1895.
Source Firkin
Derived from an image that was uploaded to Pixabay by mdmelo.
Source Firkin
This was formed by distorting an image of a background on Pixabay.
Source Firkin
I scanned a paper coffee cup. You know, in case you need it.
Source Atle Mo
Don’t look at this one too long if you’re high on something.
Source Luuk van Baars
It’s like Shine Dotted’s sister, only rotated 45 degrees.
Source mediumidee
Feel free to download and use it, or see the rest of the dark background patterns that I have made. Anyway, I hope you will find something that you like.
Source V. Hartikainen