This is a selection of colours I thought would be convenient for watercolour sketching on location in Western Australia. My goal was to provide plenty of colours that could be used straight out of the pan for common subjects (trees, buildings, the sky), while also having options to mix most other colours.
Red
Bright, primary red, good for stop signs and fire trucks.
Brand: Derivan Pyrrole Red
Pigment: PR254
Magenta
The other red primary! Good for floral pinks when diluted with water or white, and for mixing purples.
Brand: Derivan Magenta
Pigment: PV19
Purple
A blue-leaning purple, wonderful for Jacaranda flowers and other florals. Mix with black for an interesting shadow colour.
Brand: Van Gogh Quinacridone Purple Blue
Pigment: PV55 (Quinacridone Purple)
Lemon Yellow
A cool (green-leaning) yellow, good for yellow subjects and for mixing bright greens.
Brand: Imidazalone Lemon (Holbein)
Pigment: PY175 Benzimidazolone Yellow H6G
Olive Green
A nice, natural green, good for some types of eucalyptus trees and other muted greens. Add lemon yellow to brighten it up for lawn grass.
Brand: Kusakabe Olive Safari
Pigments: PG7, PY83, PBr7
Forest Green
A darker, more blue green that is good for pine trees and other dark greens.
Brand: Kusakabe Castle Green
Pigments: PB15:3, PBr7
Turquoise
A truly beautiful blue-green, good for the ocean (mix with dark blue or yellow/yellow ochre to adjust the shade).
Brand: Daniel Smith Phthalo Turquoise
Pigments: PB15:3, PG36
Blue
A lovely mid blue, good for skies and mixing bright greens.
Brand: Daniel Smith Phthalo Blue RS
Pigment: PB15:6 (Phthalo Blue Red Shade)
Dark Blue
A very dark, almost dusky blue. Great for the deep parts of the ocean and for mixing muted greens.
Brand: Daniel Smith Indanthrone Blue
Pigment: PB60
Yellow Ochre
Yellow brown, good for buildings and mixing muted greens.
Brand: Van Gogh Yellow Ochre
Pigment: PY42
Burnt Sienna
Red brown, a good base for some types of earth colours, red roofs, and for mixing.
Brand: Holbein Imidazalone Brown (This is not a traditional burnt sienna, but it was all I had.)
Pigment: PBr25
Raw Umber
A very dark, more neutral brown. A good base for some tree trunks.
Brand: Qor Raw Umber
Pigment: PBr7
Buff Titanium
An opaque beige colour, good for beach sand, sandstone buildings and some footpaths.
Brand: Daniel Smith Buff Titanium
Pigment: PW6:1
White
A good mixing white, but may be difficult to attain full opacity when using on top of other colours.
Brand: Daler Rowney Aquafine Gouache
Pigment: PW6
Black
A very neutral black, good for muting down other colours as well as painting black subjects.
Brand: Rembrandt Spinel Grey
Pigment: Pbk26