As you probably already guessed this article is dedicated to blue color. Without a doubt, blue is one of the most important colors in UI design, and one of the most frequent. Just look at your smartphone app icons, and you’ll see that a lot of them are blue: Facebook, Twitter, Shazam, Safari, etc.

So why is blue the chosen color?

There are a lot of reasons to use blue, I’ll list a few of them:

People like this color. Surveys show majority of people see blue as their favorite color. Blue is considered to be the safest color globally.

Color preference is an important aspect of visual experience

![](/content/images/2017/07/2-1.png) * **Associated with nature.** Blue is strongly associated with clean water, clear skies, etc., which leads to its high preference as a color. ![](https://babich.biz/content/images/2017/07/3-1.jpg)

Blue has an association with nature due to this being the color of ocean and sky.

Universal color for UI designers. From a UI designer standpoint, it’s an incredibly useful color. A lot of colors from designer’s toolbox such as red, orange, and green already have strong built-in associations —for error, caution/safety, success. This makes the blue color a good choice for designers.
Gives a sense of innovation. Often, companies use blue because it associated with tech and innovation.
Makes people feel safe. Blue is a very common color for websites and apps in the travel industry. It represents reliability, which is a good thing for travel companies.

Delta airlines

Makes the product seem trustworthy. More often than not, it’s a case of trying to convince the user that this is the right product to use. The purpose of adding blue, in this case, is convincing the user of its credibility. Technology brands like Dell, IBM, Intel, AT&T and PayPal take advantage of blue’s trustworthy message; they create products that people rely on day after day.

Blue evokes a sense of balance as well as calm intelligence. That’s why the vast majority of financial services firms use blue.

Colorblindness. Most common types of colorblindness (Protanopia and Deuteranopia) can see the color blue. This can’t be said for colors like green or red.

How visually impaired people see colors

![](/content/images/2017/07/10.png)

Blue is Facebook’s dominant color, because Mark Zuckerberg is colorblind. As he said, “blue is the richest color for me — I can see all of blue.”

#Conclusion I hope that after reading this article you have a good idea of why blue color is so popular among designer. However, this doesn’t mean that you should go and change the main color in your app/website to blue. >Blue isn’t the universal best color. There’s simply no universal best color.

What works on one site or app, doesn’t necessarily work on another. It’s a safe bet to select the color according to the preferences of your target audience:

Ultimately, the right color for your design is the one that your users think is right.

Thank you!