The image depicts a shell seamless pattern.I used an OCAL clipart called "Shell" uploaded by "jgm104".Thanks.
Source Yamachem
The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
Traced from a drawing in 'Household Stories from the Collection of the Brothers Grimm', Wilhelm Carl Grimm , 1882.
Source Firkin
From a drawing in 'Studies for Stories', Jean Ingelow, 1864.
Source Firkin
Light square grid pattern, great for a “DIY projects” sort of website, maybe?
Source Rafael Almeida
Bright Multicolored Floral Background by Karen Arnold from PDP.
Source GDJ
A seamless pattern created from a square tile. To get the tile, select the pattern in Inkscape and use shift+alt+i.
Source Firkin
A background formed from an image of an old tile on the New York Metropolitan Museum of Art website. To get the base tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
You don’t see many mid-tone patterns here, but this one is nice.
Source Joel Klein
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
Zero CC tileable dry grass texture, photographed and made by me. CC0
Source Sojan Janso
From an image on opengameart.org shared by rubberduck.
Source Firkin
Submitted in a cream color, but you know how I like it.
Source Devin Holmes
Abstract Geometric Monochrome Pattern Prismatic No Background
Source GDJ
These dots are already worn for you, so you don’t have to.
Source Matt McDaniel
A green background pattern with warped vertical stripes and a grunge look.
Source V. Hartikainen
A seamless pattern recreated from an image on Pixabay. It is reminiscent of parquet flooring and is formed from a square tile, which can be recovered in Inkscape by selecting the ungrouped rectangle and using shift-alt-I together.
Source Firkin
Here's an yet another background for websites, with a seamless texture of wood planks this time.
Source V. Hartikainen
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Zero CC tileable cork floor, photographed and made by me. CC0
Source Sojan Janso
Classic vertical lines, in all its subtlety.
Source Cody L