Art Spectrum Studio Blend Oil
Raw Sienna 40ml
Warm, transparent golden amber: the essential earth yellow for landscape and glazing.

Art Spectrum Studio Blend Oil Raw Sienna 40ml is a warm, transparent, golden amber-yellow earth colour based on PBr7 (natural Raw Sienna iron oxide). It is brighter, more golden, and more transparent than Yellow Ochre, sitting between a transparent warm yellow and a true earth brown. Raw Sienna is one of the most useful glazing colours in the palette: applied thinly over lighter passages it gives the warm, golden, transparent quality of light filtered through autumn leaves, the amber warmth of late-afternoon sun on ochre rock, and the rich, golden undertone of aged wood and stone. As one of the fast-drying earth pigments, it is also an excellent choice for lean underpainting and first layers.

Pigment
PBr7 (Raw Sienna, natural iron oxide)
Opacity
Transparent
Lightfastness
ASTM I
Drying
Fast
Natural iron oxide earths are among the fastest-drying oil pigments
★ Art Shed Staff Tip
Raw Sienna is an excellent choice for the warm amber-golden light in Australian landscape. Mixed thinly with a lean medium and glazed over a lighter dried passage, it gives the quality of warm afternoon light without the opacity of a mixed colour. In a limited landscape palette, Raw Sienna between Yellow Ochre and Burnt Sienna fills the warm, golden, transparent amber register that the other two earths cannot quite reach. Used in a tonal underpainting wash with just enough oil to keep it lean, it gives a fast-drying warm amber ground that can be overworked almost immediately.
Perfect For
Warm amber glazing over dried lighter passagesAustralian landscape: golden light on ochre rock and earthAutumn foliage: warm amber and golden leafAged wood, antique furniture, old stoneFast-drying warm lean underpaintingMixed earth palette: bridging Yellow Ochre and Burnt Sienna

What Makes This Colour Essential

Transparency
Warm, Transparent Golden Amber
Raw Sienna is transparent: used thinly it gives a luminous, warm amber-yellow glaze over lighter grounds. This transparency makes it ideal for optical colour effects in layered oil painting, where glazing gives depth and warmth that opaque application cannot.
Drying Speed
Fast-Drying Earth Pigment
Raw Sienna is one of the fastest-drying colours in the Studio Blend range. This makes it an excellent choice for lean first layers and underpainting where a fast dry is needed before overpaint. Earth pigments contain natural driers.
Colour Character
Warm, Golden, Amber-Yellow
Raw Sienna is distinctly warmer, more golden, and brighter than Yellow Ochre. It sits in the warm amber-golden register between a transparent yellow and a brown, giving it a unique character not covered by any other earth in the range.
Origin
Australian-Made Since 1966
Art Spectrum has manufactured artists' materials at their Epping, Victoria facility for over six decades. Studio Blend Oil is triple-milled in refined linseed oil with ASTM I rated pigments throughout the 26-colour range.

Mixing With Raw Sienna

Raw Sienna is a key member of the earth palette and works in combination with the other earth colours to cover the warm spectrum from golden yellow through amber to deep brown. Mixed with Yellow Ochre it gives a richer, deeper warm golden earth. Mixed with Burnt Sienna it gives a warm, rich amber-orange earth that is useful for autumn foliage and warm rock faces. Mixed with French Ultramarine in varying proportions it gives warm, muted neutral tones from green-brown to dark neutral for landscape shadow.

In Australian landscape, Raw Sienna covers the golden-amber light quality of late afternoon on pale sandstone, on dry grass that has gone beyond yellow into amber, and on the warm face of weathered ochre rock where the light catches it. Glazed thinly over a dried lighter passage, it gives the quality of golden light that direct opaque mixing cannot fully convey. It is also useful as an ingredient in a warm, transparent sky wash near the horizon at sunset, giving the amber warmth of last light without the opacity of cadmium colours.

About Art Spectrum Studio Blend Oil: Melbourne Made Since 1966

Art Spectrum Studio Blend Oil is the rebrand of the former Art Prism range, with fresh new packaging and artwork. The formula is unchanged: same pigments, same linseed oil base, same manufacturing standards. Made in Epping, Victoria since 1966. The 26-colour range is fully compatible with all Art Spectrum oil mediums and varnishes, and is also available in 150ml tubes.

What is the difference between Raw Sienna and Yellow Ochre?

Raw Sienna is warmer, more golden, more transparent, and brighter than Yellow Ochre. Yellow Ochre is more opaque and reads as a stronger, deeper, more distinctly earthy golden-brown. Raw Sienna is the transparent glazing earth yellow; Yellow Ochre is the opaque, workable earth yellow for direct painting. Both are useful and they complement each other in the earth palette.

What is the difference between Raw Sienna and Burnt Sienna?

Raw Sienna is the unburned, cooler, more transparent, golden-amber form of the sienna earth. Burnt Sienna is the calcined version: darker, warmer, more orange-brown, and more opaque. Raw Sienna gives the transparent golden tone; Burnt Sienna gives the warm, deep amber-orange. Together they cover the warm amber-to-brown spectrum.

Is Raw Sienna good for Australian landscape painting?

Yes: it is one of the most characteristically Australian earth colours. The warm, golden, transparent amber quality of Raw Sienna covers the mid-afternoon Australian light on ochre and sandstone, the amber of dry coastal heath, and the warm golden underpainting tone that makes Australian landscape glow with warmth even through overlaid greens and blues.

Is Art Spectrum Studio Blend Oil the same as Art Prism?

Yes. Art Spectrum Studio Blend Oil is the direct successor to the Art Prism range with new packaging and artwork only. The formula, pigments, and linseed oil base are unchanged.

Why does Raw Sienna dry faster than most oil colours?

Raw Sienna is a natural iron oxide (PBr7), and iron oxide pigments contain natural driers that accelerate the drying of linseed oil. This is why earth colours in general dry faster than synthetic organic pigments. For layered painting, this fast dry is an advantage when the first layer needs to be workable quickly.

Art Shed Online is an authorised Australian stockist of Art Spectrum products. All Art Spectrum Studio Blend Oil products are sourced through official distribution channels. We ship Australia-wide.

Available at Art Shed Online, Australia's specialist art supply store. Questions? Contact us at customerservice@artshedonline.com.au.

(APRS4)

SKU APRS4
Barcode # 93445979
Brand Art Spectrum
Shipping Weight 0.0620kg
Shipping Width 0.050m
Shipping Height 0.050m
Shipping Length 0.050m