Curious about the answer to, “What color do blue and black make?” Well, there are several answers to this color mixing question, including navy blue, and midnight blue color! Let’s explore what and why.
First, some quick background. My name is Lillie, and I’m a teacher and artist who has been doing hands-on experiments answering to questions like “Red and blue make what color?”

Each of the illustrations and explanations in this article are hand-created with love, as with all my posts from the one on blue green color fun, and beyond. Ready to dive in to today’s quest? Let’s go!
What Color Do Blue and Black Make?
The simplest answer to the question of what color is produced when we mix black and blue is: dark blue. (This is a more straightforward result than the answer to “Brown and blue make what color?”)
The thing is, though, there are so many different varieties of dark blue shades that exist! What are some of the most notable ones?

Navy Blue Color Code
The most popular shade of dark blue is navy blue color, created with half blue and half black. Given this “color math,” the navy blue color code in the hexadecimal system is #000080. (For more on mixing shades, check out “What Does Red and Black Make?”)
Similarly, in the sRGB system, navy blue is made with 0% red, 0% green, and 50% blue (sometimes 50.2% blue). In sum, navy blue color is a medium-dark blue, which will come into play as we move on to an even darker shade… (Want more on mixing blue? Check out what blue and purple make!)

Midnight Blue Color
Add a bunch more black to your blue mix, and when you’re almost at pitch black but still with a hint of blue, you get the incredibly deep, rich shade called midnight blue color! Fittingly, this is the color of the night sky. (In contrast, the color of a clear daytime sky is azure color.)
The hex code of midnight blue color is #191970 — basically, blue with a ton of black in it (and sometimes with a dash of the other primary colors). As you can see from my illustration above, navy color is a medium-dark blue, whereas midnight blue color is an ultra-dark shade — like midnight purple!
Midnight blue is a very useful color, because it’s professional-looking for fashion or interior design, but more exciting than simply black. Want more color mixing? Check out: “Blue and yellow make what color?”
What Blue and Black Make, in Sum
Now you know that the answer to, “What color do blue and black make?” is more complex than just “dark blue” — there are all sorts of unique colors and shades with names that have a whole world behind them. Which are your favorites? Do share!
Want more? Check out what blue and orange make when mixed, and the meaning of a blue aura! If you want to get into complimentary colors in the color wheel, click on over to “What is the Opposite of Blue?”

The author and artist, Lillie Marshall, is a National Board Certified Teacher of English who has been a public school educator since 2003, and an experienced Reiki practitioner since 2018. All art on this site is original and hand-drawn by Lillie. She launched DrawingsOf.com Educational Cartoons in 2020, building upon the success of her other sites, AroundTheWorldL.com (established 2009), TeachingTraveling.com (founded 2010), and ReikiColors.com. Subscribe to Lillie’s monthly newsletter, and follow @WorldLillie on social media to stay connected!