We use essential cookies to run the site and optional analytics cookies to understand how you use it. Read our privacy policy.

Skip to content

40 New Anniversary Oil Colours - Now Available Explore Collections

Michael Harding
All Pigments
Colour Index Code

PG17

Chromium Oxide Green

Chemistry
Chromium(III) oxide (Cr₂O₃)
Origin
Synthetic mineral.
History
Introduced c.1862; opaque, dull, and extremely permanent and stable.
Toxicity
Non-toxic.

Chromium Oxide Green (PG17) is Chromium(III) oxide (Cr₂O₃). In our watercolour range it is opaque, yes granulation, excellent lightfastness.

Transparency
Opaque
Granulation
YES
Staining
Medium
Lightfastness
Excellent
PG17: Questions & Answers

What is PG17?

PG17 (Chromium Oxide Green) is Chromium(III) oxide (Cr₂O₃). Synthetic mineral..

What is the chemistry of PG17?

PG17 is Chromium(III) oxide (Cr₂O₃).

Is PG17 toxic?

Non-toxic.

Is PG17 lightfast?

In the Michael Harding range, colours using PG17 are rated excellent for lightfastness.

Is PG17 transparent or opaque?

PG17 is opaque.

Does PG17 granulate?

In watercolour, PG17 is granulating.

Which Michael Harding colours use PG17?

PG17 appears in 2 Michael Harding colours: Oxide of Chromium, Oxide of Chromium.

Michael Harding colours using PG17

2 colours across both rangesLightfastness: Excellent
Michael Harding colours containing PG17, with medium, transparency, lightfastness and granulation. Granulation applies to watercolour only.
ColourMediumTransparencyLightfastnessGranulation
Oxide of Chromium
No. 305
OilOpaqueExcellent—
Oxide of Chromium
W208
WatercolourOpaqueExcellentYES
scroll for more →
Mix with

Complementary pigments to mix with PG17

Opposite-family pigments that pair cleanly with PG17 for neutrals, shadows and chromatic greys.

Open the Mixing Studio →

Product Information & Disclaimer

The information provided on this website is based on research and testing conducted by Michael Harding Art Formulas Ltd and is intended as general guidance on the characteristics and potential uses of our products in established painting practices.

While we take care to provide accurate and reliable information, individual materials, techniques, working conditions and applications can vary. Michael Harding Art Formulas Ltd cannot guarantee that any product will be suitable for every individual purpose or application. Users should carefully read all product labels, instructions and safety information and carry out appropriate testing before use, particularly when developing individual techniques or combining materials.

To the fullest extent permitted by applicable law, Michael Harding Art Formulas Ltd makes no express or implied warranties as to merchantability or fitness for a particular purpose and accepts no liability for any loss or damage, including indirect or consequential loss, arising from the use or application of its products.

Colour Representation

Colours displayed on this website and in printed materials are for guidance only. Their appearance may vary depending on screen settings, device, lighting conditions, printing processes and other factors, and may therefore differ from the appearance of the physical product.

For the most accurate representation of colour, texture and finish, we strongly recommend viewing a physical product sample or swatch in person before making a final selection or purchase. Where colour accuracy is important, please do not rely solely on digital or printed representations.

© 2026 Michael Harding Handmade Artist Oil Colours. All Rights Reserved.