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Michael Harding
Orange Sunset - Michael Harding
Oil ColourPO34
PO34

Orange Sunset

No. 245 · Series 2 · 40ml · 60ml · 225ml, 1L, 2.5L, 5L

Orange Sunset (No. 245) Ⓥ VEGAN A bold, glowing orange made from PO34 (Disazo Pyrazolone), an organic pigment known for its warmth and vibrancy. With high oil content and strong tinting power, Orange Sunset offers a semi-opaque finish and medium drying time. While its lightfastness is slightly lower than average, it excels in sunsets, highlights, and dynamic accents.

Technical Summary

Orange Sunset is a single-pigment Michael Harding oil colour made with PO34 (Organic).

It is semi-opaque, good lightfastness, average drying time, high tinting strength.

It is ground in linseed oil with high oil content.

Code
No. 245
Series
Series 2
Pigment Index
PO34
Pigment Type
Organic
Oil / Vehicle
Linseed Oil
Sizes
40ml · 60ml · 225ml, 1L, 2.5L, 5L
Lightfastness
Good
Opacity
Semi-Opaque
Drying
Average
Oil Content
High
Tint Power
High
Toxicity
Non-Toxic
Colour Science

Measured colour data

Pigment composition, masstone measurements, and tinting paths - independently measured and provided by Artist Pigments.

Pigment Composition
PO34
Pyrazolone Orange
Disazopyrazolone Diarylide · CI 21115 · CAS 15793-73-4 · EC 239-898-6
OrganicSynthetic
Masstone
Measured masstone swatch
X-Rite i1Pro 3 · D50 · Obs 2
CIELab
L 46.97 · a 62.31 · b 62.02
Chroma / Hue
C 87.91 · h 44.87°
Munsell
9.15R 4.5/16.0
ISCC-NBS
vivid reddish orange
Transparency
SO
Lightfastness
L
Info Card
Orange Sunset info card
Position on Colour Plane
CIELAB colour plane
CIELAB plane - interactive SVG available
Tinting Path - masstone → titanium white
Path plotted on CIELAB plane
Tinting path on CIELAB colour plane
StepLabelCIELabMunsell
0masstoneL 46.96 · a 62.27 · b 62.039.15R 4.54/15.99
1tint_1L 55.36 · a 62.3 · b 61.749.1R 5.36/16.11
2tint_2L 62.3 · a 57.4 · b 56.259.21R 6.06/14.87
3tint_3L 66.87 · a 52.25 · b 50.599.38R 6.52/13.31
4tint_4L 70.84 · a 46.78 · b 44.779.46R 6.94/11.92
5tint_5L 74.51 · a 41.1 · b 38.959.59R 7.32/10.41
6tint_6L 78.51 · a 34.35 · b 32.449.68R 7.74/8.57
7tint_7L 81.92 · a 28.23 · b 26.939.88R 8.1/7.03
8tint_8L 85.32 · a 21.88 · b 21.670.33YR 8.46/5.46
9tint_9L 88.7 · a 15.22 · b 16.81.4YR 8.82/3.92
10tint_10L 92.57 · a 6.85 · b 12.535.37YR 9.23/2.84
11tint_11L 95.95 · a -0.74 · b 9.35.78Y 9.58/2.4
Pigment Behaviour

Tint · Tone · Shade · Glaze

Preview how Orange Sunset behaves when mixed, toned, shaded and glazed. Each swatch is computed from the masstone using a perceptual subtractive model - an approximation for guidance, not a formulation guarantee.

Masstone swatch
Masstone
L 46.97 · a 62.31 · b 62.02
9.15R 4.5/16.0

Orange Sunset straight from the tube.

Undertone
#ffdf83

A thin wash over white.

Tint
#fe8703

Mixed with Titanium White.

Tone
#be6202

Mixed with a mid neutral grey.

Shade
#973700

Darkened with a chromatic black.

Glaze
#ffc747

A thin transparent film over white.

Compare Orange Sunset

Compare with nearby colours

See Orange Sunset side-by-side with its closest neighbours in the range — chemistry, opacity and lightfastness at a glance.

Mix with Orange Sunset

Popular combinations

Open Orange Sunset in the Virtual Mixing Studio to preview how it combines with these partners before you reach for the palette.

Open Orange Sunset in Mixing Studio
Where to buy

Orange Sunset

Available from 114 verified stockists worldwide

Store locator
Orange Sunset: Questions & Answers

What pigment is used in Orange Sunset?

Orange Sunset is made with PO34.

Is Orange Sunset a single-pigment colour?

Yes. Orange Sunset uses a single pigment (PO34), so its behaviour stays consistent and predictable on the palette.

Is Orange Sunset transparent or opaque?

Orange Sunset is semi-opaque.

Is Orange Sunset lightfast?

Orange Sunset has good lightfastness.

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Colour Disclaimer: Colours shown on screen or in print may vary from the actual product. For the most accurate representation of colour, texture and finish, we recommend viewing a physical sample or swatch in person before making your final selection.

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.

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