Gouache VS Watercolor

Gouache is Opaque

Light colors can be layered over dark colors and still show up.

Watercolor is Transparent

Light colors will not show up over dark colors.

Gouache Needs White to Lighten Colors

To make pastel colors, you have to add white to the color.

Watercolors Can Be Lightened with Water

To make pastel colors, just add more water.

Gouache Has a Matte Finish

Watercolor Has Luminance

Since watercolors are transparent, they have a luminant effect and almost seem to glow.

Gouache Has a Faster Drying Time

Gouache uses less water, so it dries much quicker.

Watercolor Takes Longer to Dry

Watercolor requires a lot more water, so it can take longer to dry.