A while a go I learned about color from my friend Julie who does color consultations at her studio, A New Hue. She helps people find a color palette that enhances their skin tone. She painted the walls gray to neutralize any competing colors; and the lighting is broad spectrum (like an Ott Light) so color is more true, like sunshine. When I saw this, it occurred to me that the same thing can happen when we look at fabric in bad lighting.
So imagine what it is doing to the fabric in your studio/sewing room. As much as I love fuchsia, when you take that color and add a dash of bright sunshine, the light bounces off the walls and on to the fabric and changes its appearance. And what looks like it matches really doesn't.
That is why my walls are a neutral color (and that goes for window treatments, too). You don't need to ignore your favorite colors: just use them as accents throughout the space (pillows, quilts, storage accessories, bulletin board, etc). That punch of color is all you need to inspire you and your students to find their creative spirit.
BTW, I'm a big fan of Benjamin Moore paint. It is a thicker, higher quality paint that can take a beating. It doesn't drip like cheaper paint and it covers beautifully.