yellow
To make the color yellow with paint, you can mix equal parts of red and green paint together. This will create a yellow hue.
yes. but you must put a sealant on it. Do it all the time.
Tempra paint is a water based paint, I don't see a problem using a water based acrylic, if this bird house will be outside, I would add some UV inhibitors to keep the sun from fading out your paint job.
Yellow
When red and yellow paint are mixed together, the color of the painting changes to orange.
When red and yellow paint are mixed together, the color of light that will be reflected is orange.
Blue And Yellow
I think you get green yellow? BUT the best way to find out is to take green paint and yellow paint and mix it together try it out.
Yellow is a primary color, meaning no colors are put together to make it, it is just there. You can add just about any other color to yellow to make different types of yellow, though. If you add too much of a certain color, (not including yellow), to yellow, it morphs into a totally different color. An example is adding an equivalent amount red paint to a certain amount of yellow paint. You will get the color orange as a product.
Butterbream is a very, very light yellow color. Start with white paint and add very small amounts of yellow at a time. You can always add more, but you can't take the yellow paint back out.
To make the yellow color brighter, you can mix in a small amount of white paint to lighten it. Another option is to layer additional coats of yellow paint to increase the intensity of the color. Alternatively, you can use a yellow paint with higher pigment concentration for a more vibrant result.
To tone down yellow paint, you can paint over it with a different color. You can also add white to the paint.