MAIN SET (48 colours): My current main set is the standard SCHMINCKE Horadam 48 Half Pan Watercolor Set, in the metal case. So far I’m pleased with the colour choices of the set and only replaced the silver and gold paints with some additional greens. Overall really high quality professional paints with high pigment concentration. The set is well balanced but contains a lot of opaque colours (I don’t mind this actually). This brand is really popular in Japan and it’s easy to buy replacement colours - this is also a reason why it’s my primary set.
CUSTOM SET (48 colours): This is my old, now secondary set. I bought the standard 24 colour set from Winsor and Newton (artist series not the Cotman), but felt it lacking, so I bought a bigger box (48 colours) and added some colours, replaced some also.
Now it’s about 28 Winsor&Newton, 16 Schmincke, and 4 from Daler Rowney (I like the Schmincke ones the best probably)
This is a nice way to complete your own set - while you paint you discover what additional colours you want, buy and mix. Also because it’s expensive, this way you don’t buy colours you will not use.
SMALL SET (24 colours): A smaller, more compact set I use mainly for painting outdoors - the huge 48 colour boxes are just to heavy to hold for longer sessions. This is a mix of various brands. I replace colours in this set really often, also squeeze tube colours to empty pans I have.
Check the numbers on colour charts of the following makers:
HWC = Holbein watercolours
I also have and use sometimes:
White Nights 16 colours set No. 2
Kuretake gansai tambi 12 colours Japanese watercolours set.
Holbein tube watercolours (used and recommended by Hayao Miyazaki)
The industry standard for painting anime backgrounds are the NIKKER Poster colour paints. Relatively cheap, opaque, highly pigmented paints similar to gouache. They do not become waterproof when dry - can be lifted and rewet to a degree. The are many colours available sold in tubes or small jars and empty jars for your own mixes also.
I use acrylic Gouache by NIKKER and TURNER for most of my opaque-colour paintings. Maybe because of my digital background art experience I prefer paints that become waterproof when dry. I can layer things without the fear that I will smudge or pick up and blend the colour already there. This approach has it’s difficulties also: Acrylic Gouache are harder to blend and mistakes are hard to fix after the paint dries.
Acrylic gouache (especially by TURNER) are really popular in Japan and come in hundreds of colours in tubes:
Acrylic gouache differs from regular acrylic paint because it dries to a matte, opaque finish and has longer reworking time than regular acrylics.
And again it differs from regular gouache because it becomes water-resistant and permanent when dry.