The short version
Studying how a site is designed and building your own product in a similar style is how design has always worked. What you cannot take is the parts someone owns: their name and logo, their words, their photographs and illustrations, their code, and fonts they license. And you must not make your product look like theirs in a way that confuses customers about who made it.
This page is general information, not legal advice. Laws differ by country; if a project depends on it, ask a lawyer.
Usually fine
Measuring and learning: reading a page’s colours, type sizes, spacing and layout to understand why it works.
Using a similar style: a dark interface with a bright accent, a type scale with very heavy headlines, generous spacing. Individual colours, sizes and layout conventions are not ownable on their own.
Using open-source fonts and your own content: free fonts with similar proportions, and your own words, photos and product.
Not fine without permission
Their brand: name, logo, slogans and anything that suggests you are them or connected to them.
Their content: text, photographs, illustrations, icons drawn for them, videos. These are protected by copyright the moment they are made.
Their code and assets: copying their HTML, CSS or JavaScript files wholesale, or downloading and reusing their media.
Licensed fonts: a commercial or custom typeface needs a licence, even if the files load in your browser.
A look-alike that confuses: copying a distinctive overall appearance so closely that people could mistake your product for theirs can be passing off or trade dress infringement.
How to use a site as inspiration responsibly
Take the system, not the content: colours, scale, spacing and rules, rebuilt with your own text and images.
Change what makes it theirs: their signature colour on their kind of product, their logo shapes, their illustration style.
Swap licensed fonts for open ones, and keep any reused assets to what you have permission for.
PikSpec’s exports and AI Kits are built this way: they carry values and rules, tell AI tools never to use the original’s name, words or images, and substitute free fonts for licensed ones.
Questions
Is it legal to clone a website?
Copying a site’s code, text and images wholesale infringes copyright. Recreating a similar layout and style with your own content and code is generally fine, as long as it does not confuse people about who made it.
Can I use the same colours as another brand?
A single colour usually is not protected on its own, but combining a famous brand’s signature colour with a similar name, logo or product can suggest a connection that trade mark law forbids.
Can I use a font I found on a website?
Only if its licence allows it. Google Fonts are free; commercial and custom fonts need a licence from their owner.
Contact PikSpec
Email support@pikspec.com for support, privacy requests or content reports.