What colors go with pink?

Answer 1

Any two colours "go together" ; the question is whether you like the result. If you want more than two colours, you have to go with colour harmony, as follows.

Pink is a light (or low "saturation") red, so it is on the boundary of the colour group between red and yellow, and of the colour group between red and magenta; it harmonises with all the colours of either of these groups (but not both at the same time).

(red/yellow: red, burgundy, maroon, watermelon, scarlet, orange, taupe, terracotta, bronze, copper, marigold, gold, red-brown, yellow-brown, yellow)

(red/magenta: burgundy, maroon, "heritage red", wine, rose, dark rose, crimson, raspberry, cerise, ruby, fuchsia, magenta)

The complementary colour (that is: hue) of pink is cyan (or "turquoise") (because pink is red in hue; it is a light red).

If you want to get fancy…

One alternative is to choose a different colour, from one of the above two ranges, as your main colour. The point is that the complementary colour of this will then be, not cyan, but the complement of this other colour. Again, you can have only one complementary colour, but this one colour could then be anything between blue and green. (The complement of blue is yellow; the complement of green is magenta; you will need a colour wheel if you want to get fancy in this way, so that you can see what the complementary pairs are. (Complementary colours are opposite each other on a colour wheel.) Your computer will have one somewhere, built in.)

You do not want to mix more than about two different saturation levels and more than about two different darkness levels; choose one or the other to vary. Pink is red with a saturation of about 32% (or about 1/3 strength), and value (not-dark-ness) of 100%.

(If by "pink" you mean "hot pink", that is magenta, which is an entirely different colour. Its complement is (primary) green, and it is on the boundary of the colour group between blue and magenta, and the colour group between magenta and red.)