What is difference between BLACK,WHITE & GRAY HAT SEO?

White hat SEO :-
White hat SEO is ethical SEO. It's SEO techniques that search engines accept. White hat SEO techniques are beneficial for site visitors as well as for search engines.

Black hat SEO :-
Black hat SEO is the use of techniques that are unacceptable to search engines to boost a page's position in search results. These techniques are intended to trick search engines into giving pages higher positions in search results, and they have no benefit to site visitors.

Gray hat SEO :-
Gray hat SEO is SEO techniques that take more risks than white hat SEO techniques but aren't likely to get your site banned from search engines (although a search engine penality could result). They're questionable SEO techniques but not in the same category as black hat SEO techniques. However, what's considered gray hat SEO today might be black hat SEO next year.

White hat and gray hate are related to each other while black hat is different from these.

White Hat SEO basically a process where users try to increase their search engine optimization through honest techniques and by following search engines guidelines.
Black Hat SEO seeks to improve search engine optimization through techniques that are frowned on by search engines, or even considered illegal. Black Hat SEO wants to rank websites as quickly as possible.
Grey hat SEO is a mixture of black hat and white SEO. Grey hat seo avoids or bends the guidelines that search engines have.

Yes, white hat seo is the legal techniques, black hat seo is illegal techniques due to which your website will be penalized where as grey hat seo is also illegal but it will not make your website penalized.

 White hat SEO is the way by which you optimize using all the SEO tactics considered ETHICAL and honest in order to achieve good SERPS. It often takes a lot of time and can be time consuming. But results will help give your site prestige in addition to great placement.

Black hat SEO is the process by which you achieve SERPS placement using tactics that are completely unethical. The results are immediate but will not last. When you are caught implementing black hat SEO you can face severe consequences like site banning.

Grey hat is just the combination of both white hat and black hat SEO tactics.

Ultimately, if you really care about your site and are serious about online success, stay away from any shade that is NOT White Hat SEO.

White hat SEO :-
White hat SEO is ethical SEO. It's SEO techniques that search engines accept. White hat SEO techniques are beneficial for site visitors as well as for search engines.

Black hat SEO :-
Black hat SEO is the use of techniques that are unacceptable to search engines to boost a page's position in search results. These techniques are intended to trick search engines into giving pages higher positions in search results, and they have no benefit to site visitors.

Gray hat SEO :-
Gray hat SEO is SEO techniques that take more risks than white hat SEO techniques but aren't likely to get your site banned from search engines (although a search engine penality could result). They're questionable SEO techniques but not in the same category as black hat SEO techniques. However, what's considered gray hat SEO today might be black hat SEO next year.

black hat seo:- this technique is a unethical way of building links. If the search engine finds out that if you do black hat then it will give sure penalty. it doesn't follow rules framed by the search engine.

white hat seo:- it is the ethical way of building links and this technique is where we follow the rules and regulations of the search engine.

grey hat seo:-it is where both black hat and white hat is combined.

doing seo according to the search engine guidlines is  whitehat techniques.
if you have done seo against to the search engine guidlines that's called blackhat techniques for example hidden text,keyword stuffing,duplicate content.
gray hat seo is a mixture of both whitehat techniques and blackhat techniques.

 White hat SEO is the way by which you optimize using all the SEO tactics considered ETHICAL and honest in order to achieve good SERPS. It often takes a lot of time and can be time consuming. But results will help give your site prestige in addition to great placement.

Black hat SEO is the process by which you achieve SERPS placement using tactics that are completely unethical. The results are immediate but will not last. When you are caught implementing black hat SEO you can face severe consequences like site banning.

Grey hat is just the combination of both white hat and black hat SEO tactics.

Thanks for the info because i know only white and black hat SEO now only i learned a idea about the gray hat seo thanks.

White is hat SEO is using SEO strategies effectively by following search engine rules while black and gray hat SEO does not abide with search engine rules, they wanted fast and illegal ways in driving traffic to websites.

The term black hat and white hat is something that has been passed down from old Western movies. During the making of these movies, the directors used hat colors to help viewers determine if a character was a protagonist or antagonist. The good guys wore white hats; the bad guys word black hats. Today, SEO experts use the phrases to differentiate between ethical and questionable SEO techniques.