
Viridian
Inorganic - Viridian is about the fastest curing colour in my entire range, along with Stack Lead White. This hydrated variant of Chromium Hydroxide, introduced in the mid-19th century, is a valued support colour used for influencing greys in underpainting. The vivid blue undertones apparent in thin layers are soon eclipsed in thicker applications. Landscapists and some portraitists still prefer it to the more brutal power of the Phthalo Greens. When combined with reds, an interesting range of blue-greys results. Placing it as local colour in the proximity of vermilion can also produce some interesting complementary effects.
Viridian is a single-pigment Michael Harding oil colour made with PG18 (Inorganic).
It is semi-transparent, excellent lightfastness, very fast drying time, average tinting strength.
It is ground in linseed oil with average oil content.
- Code
- No. 511
- Series
- Series 5
- Pigment Index
- PG18
- Pigment Type
- Inorganic
- Oil / Vehicle
- Linseed Oil
- Sizes
- 40ml · 60ml · 225ml, 1L, 2.5L, 5L
- Lightfastness
- Excellent
- Opacity
- Semi-Transparent
- Drying
- Very Fast
- Oil Content
- Average
- Tint Power
- Average
- Toxicity
- Non-Toxic
Measured colour data
Loading measured pigment data…
Tint · Tone · Shade · Glaze
Preview how Viridian 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.

Viridian straight from the tube.
A thin wash over white.
Mixed with Titanium White.
Mixed with a mid neutral grey.
Darkened with a chromatic black.
A thin transparent film over white.
Popular combinations
Open Viridian in the Virtual Mixing Studio to preview how it combines with these partners before you reach for the palette.
Open Viridian in Mixing StudioFeatured in 10 palettes
What pigment is used in Viridian?
Viridian is made with PG18.
Is Viridian a single-pigment colour?
Yes. Viridian uses a single pigment (PG18), so its behaviour stays consistent and predictable on the palette.
Is Viridian transparent or opaque?
Viridian is semi-transparent.
Is Viridian lightfast?
Viridian has excellent lightfastness.
Is Viridian vegan?
Yes. Viridian contains no animal-derived ingredients and is suitable for vegan artists.
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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.

