Colour collusion? Well how colour interacts with your your website covertly and how it can improve your business. Did you know that colour can be one of the strongest influences on purchasing decisions. This Kissmetric infographic suggests how important it can be.

So I’ve trawled my bookmarks and surfed the Internet to find 5 tools I think will help you in deciding what colours best suit your website project.

  1.  Pictaculous

As well as being one of the best named tools in this list Pictaculous is also one of the easiest to use. Got a logo or image you want to be the centre of your site? Just upload it and hey presto here’s some colour schemes we think go with it.

  1.  Kuler

You would expect the Adobe stable to come up with something pretty comprehensive and Kuler is just that. A library to rival any other colour scheme library, it features common Adobe traits such as user-submitted suggestions as well as easy import into Adobe Creative Suite applications – you’ve possibly already seen the Kuler panel in Photoshop. Effectively, it means you can take advantage of the leg-work others have carried out and pick a complimentary colour scheme in minutes.

  1.  COLRD

Best described as a Pinterest clone for designers, ColRD is designed for those int he trade to share their colour palettes, gradient, patterns and colourful images along with usage licences and links to authors websites. More for those seeking inspiration, the collection is very diverse, so there is something for everybody.

  1.  ColourLovers

If ColRD is the Pinterest of the colour world, so ColourLovers is the Facebook equivalent. Another place to share colours, palettes and patterns but with an emphasis on discussion and commentary on the latest trends and talking points.

  1.  Check My Colours

Accessibility is an essential nowadays and a poor colour contrast really can affect readability on a web site. Thankfully, there are few sites nowadays with magenta backgrounds and yellow text and this site will make sure that you don’t make similar design faux pas. Type the URL of the page into Check My Colours and it will create a report showing the page elements that fail to meat the contrast standards set down in W3C.

That’s just 5 of the hundreds of colour picking, colour inspiring tools I’ve found, so if I’ve missed out your favourites I apologise. Do let me know though what tools you use and also what other colour-related applications you suggest people take a look at.