[MikeTheGamer]

I seem so shit in colors, even if I choose complementing colors they look like complete horseshit. What do you do to let your colors look so sexy?

[.Cherry]

https://flatuicolors.com
Try this

[MikeTheGamer]

Holy shit that's sexy. Looks like I just wasted $14.99 buying the shitty Coolorus PS plugin.

Does the Flat UI Colors site have more colors?

RIP.

[Rivalry]

tbh flatuicolours isn't even that good- some of the shades are amateurish or a little old-fashioned.

Adobe Colour (formerly Kuler) is fantastic as a resource for finding entire palettes (ie colours that work well together rather than just random shades).
https://color.adobe.com/explore/most-popular/?time=all

Other than that there are a few standard combinations you can go for. Blue/white, red/dark grey, yellow/white/black, green/dark grey all look nice and are typical themes used by people on HF. Your precise shade shouldn't be too bright. Try using pastel shades.

[Sejskaler]

tbh flatuicolours isn't even that good- some of the shades are amateurish or a little old-fashioned.

Adobe Colour (formerly Kuler) is fantastic as a resource for finding entire palettes (ie colours that work well together rather than just random shades).
https://color.adobe.com/explore/most-popular/?time=all

Other than that there are a few standard combinations you can go for. Blue/white, red/dark grey, yellow/white/black, green/dark grey all look nice and are typical themes used by people on HF. Your precise shade shouldn't be too bright. Try using pastel shades.

I agree here, Adobe Colour is amazing, even though there are some really bad combinations in there too, it really comes with your style.

There are of course classic combinations, and it really comes by what you want to make, as an example:
If you are designing a character, you might want something really contrasty to fit the style, let's say he's supposed to be "bad-ass", you might want to use pitch black for shadowed part of the clothes, whereas if he was to be cute, pastel colours and soft shadows might fit better.

You can often do one other thing though, if you want to create your own, a good tip is not only to change the saturation of the colour (setting it to multiply as an example), but also the hue, by changing the hue and saturation, it's easier to make the clour stand out and frame it, this might be good for shading eyes etc.

Now, if you want UI design, you might want flat colours, simple colours, where instead of changing the saturation, you want to change the colour, this is where compliment colours come in, makes it a ton easier to look at.
But take a look at how used this is, sure, it works, but it becomes boring to look at, so why not do the opposite and try contrast colours.

You can also try to take, let's say a light blue, and shading it with a deeper purple, just to see the effect, or even blend light and shadow.

I would recommend finding a colour scheme you really like, and using it for base colours, only to change it up over time.
A lot of picking colour comes with what the image is going to be ^^