noun
sienna
see-EN-uh/siˈenə/
A yellowish-brown or reddish-brown earth pigment or its color.
The earth pigment and painted swatch share a warm sienna color.

Etymology
Siena supplies the name through “earth of Siena,” referring to the local earth from which the pigment was first produced. The pigment's name also came to denote its brownish-orange color.
In context
Burnt sienna has a burnt orange color to it.
More examples
- She paints the clay pot a warm sienna.
- Raw sienna gives the landscape a yellowish-brown glow.
- He uses burnt sienna for the reddish-brown roof tiles.
Forms
sienna
Similar words
- ocher
- Usually more yellow than sienna, though both are earth pigments.
- umber
- A brown earth pigment typically darker and less orange than sienna.