Oranges and reds
For this blog I have decided to discuss how a pigment with a bias affects the mix using orange and red as an example. There are many different tones of red and orange from the bright and vivid to the muted and dark. Colours can range from a pale apricot to the bright orange in a Gerbera and with reds, from a deep dark red Dahlia to a bright red field poppy and the orange-red of a slightly unripe tomato. So, let’s start with orange and find out how we can select the right reds and yellows for the job in hand.
Mixing your own orange tones is more accurate than buying a ready-made orange pigments. There are many ready-made oranges but you will most likely find that they are opaque. Cadmium pigments are always opaque and Winsor Orange is also semi-opaque. Daniel Smith have a very good selection of reds and oranges which are mostly semi-transparent and transparent. There is a relatively new orange in the Winsor & Newton professional watercolour range called Transparent Orange. This is totally transparent and has a beautifully bright orange/red hue. However, it may not be quite the tone of orange you are looking when painting a marigold for instance, but adding a little Transparent or Indian yellow will adjust it, simples! Opaque pigments are not good for layering watercolour when painting as you will not achieve as much depth or translucency.
The image below shows the pigments used for this experiment. They are all Winsor & Newton professional watercolour pigments. Four reds: Permanent Rose (PR), Quinacridone Red (QR), Scarlet Lake (SL) and Winsor Red (WR). Three yellows: Winsor Lemon (WL), Transparent Yellow (TY) and Indian Yellow (IY). They are all transparent or semi-transparent pigments. They all have different qualities of their own. PR is a violet bias magenta red pretending to be pink, QR is a saturated and very appealing red (close to the primary), SL is a lovely warm orange biased red and WR is a richer saturated primary red with a slightly darker value. WL is a very cool green biased yellow, TY is a slightly orange biased yellow and Indian yellow is a very orange biased rich yellow. Let’s see how these colours mix together and what the results are like. You could add many more reds to this experiment such as Permanent Carmine, Perylene Maroon, Quinacridone Magenta and Permanent Alizarin Crimson. If you try mixing all these variations too you will discover a million different tones of red and orange!
The chart below shows a mix of oranges with different amounts of yellow added to each red. Three variations of each. The violet bias of the PR makes makes the mix look more muted, especially in the TY column. These mixes are not as vivid as the other orange mixes, although the PR orange is a little brighter with IY added. My favourite bright orange mix is QR or SL and IY. However, oranges come in many guises and you would need to match your subject by testing your yellow and red mixes first. Test yourself for a true colour match as the photos here are not totally accurate.
The red chart below also shows the differences in orange tones across four yellows. This time I have introduced Quinacridone Gold (QG). QG is a gorgeous colour but a very muting yellow. It is probably easier to see the difference on this chart as the first mix in each column is a red mix with a little yellow added to make orange. Again, there are subtle differences to intensity of colour depending which red and yellow are used. The QG column is quite muted. The TY column is slightly muted. The PR and WR rows are also muted in places. Brightness is appearing more in the first three yellow columns of the SL and QR rows. The differences happen partly due to the colour index numbers within each pigment which I have described for you below. Again, test yourself for a true colour match as the photos here are not totally accurate.
The Yellows
Winsor Lemon – PY175 – A lighter yellow with a green bias, this will generally brighten.
I personally prefer Sennelier Lemon Yellow (PY3) as it is totally transparent whereas WL is semi-transparent. It has a very light value and is a good primary yellow. Daniel Smith Lemon Yellow (PY175) is similar.
Transparent Yellow – PY150 – An intense very slightly orange biased middle tone yellow, very slightly muting.
Indian Yellow – PY139, PO62 – A warm orange biased yellow, a beautifully rich colour! Great for orange mixes but it will dull green mixes to olive/earthy green tones due to the orange pigment content.
Quinacridone Gold – PY150 slightly orange biased yellow, PV19 violet biased red, PR206 brown biased red. This colour has three colour index numbers. The violet bias and brown bias are the muting elements.
The Reds
Permanent Rose – PV19 – A violet bias magenta/red. A cooler red but with a warm pink undertone.
Quinacridone Red – PR209 – A saturated red with a little warmth. It is a less intense, softer red.
Scarlet Lake – PR188 – An intense orange biased red. Mix it with a cool green bias blue though and you’ll get a muddy mess!
Winsor Red – PR254 – A deeper value saturated and intense red. It will mute because of it’s deeper tone.
The orange
Transparent Orange – DPP (Diketo-Pyrrolo-Pyrrol) – a lovely rich orange/red pigment.
I hope this blog was useful and wish you all a very merry Christmas!
Watercolour Mixing Techniques for Botanical Artists
A practical guide to accurate watercolour mixing with primaries for botanical artists
Colour mixing is a key skill for the botanical artist. In this practical guide, Jackie Isard explains how to observe and use colour accurately. She shows artists how to make informed choices when selecting pigments, as well as how to learn about colour mixing and its application.
• Gives detailed instruction and advice on understanding colour and pigments
• Explains how to ‘see’ colour and tricky mixes, from greens and reds to the difficult botanical greys
• Includes advanced colour application techniques – colour enhancement, shadow colours and colour temperature transition
• Step-by-step guides illustrate how to paint with layers, how to use underlaying colours to enhance, and colour and fine detailing
Order online via major book shops or Amazon. Published by The Crowood Press Ltd
ISBN: 9781785008283
More information on how to buy is on my website www.jibotanicals.co.uk. Please note, preorder for the USA and Canada are online. Launch in the states is October 2021. E-books are available worldwide.
Online courses for botanical artists:
• Mixing Watercolour Accurately for Botanical
• Fine Details and Finishing Techniques
For more information and course outlines see my website at:
www.jibotanicals.co.uk
NEW MINI-BOOK for beginner botanical artists.
Order from me direct via email or visit my Etsy shop, link below.
The Little Book of Watercolour
for Beginner Botanical Artists
A very useful little guide for beginner botanical artists wishing to learn how to use watercolour and their painting materials.
• Water and pigment balance
• Brush types and uses
• Using a palette
• Exercises to improve brush skills
• Useful painting techniques
This self published mini-book. 148mm x 148mm
Available to purchase via me personally, email jackieisard@googlemail.com
More little mini-books which will be added to this series
All these books will be aimed at the beginner botanical artist. Subjects will include: What is Botanical art, Easy to understand botany, Measuring and accurate drawing – tips, Painting techniques and application, Colour values in painting, Botany and the botanical artist, Developing a composition – tools and tips, Framing and exhibiting – tips.
Email address:jackieisard@googlemail.com
Facebook:https://www.facebook.com/jackieisardbotanicalnaturepainting/
Instagram: @jackieisard
Blog: https://jibotanicals.com/
Web: https://www.jibotanicals.co.uk/
Etsy shop: https://www.etsy.com/uk/shop/jibotanicalsGifts
Here I have split some of the W&N blues into categories. The permanency, lightfastness and transparency ratings are under each colour:
Strongs – those which have greater intensity of pigment, you’ll need less when mixing!
Granulators – those which granulate, not good for smooth rendering! Some of them will granulate more than others. Cobalt Blue isn’t as grainy as French Ultramarine. However, Ultramarine Green Shade shows very little granulation, but it does have a very slight green bias compared to French Ultramarine. I like the intensity of this pigment compared to French Ultramarine though.
Cerulean is a particularly granulating pigment and semi-opaque. If used as an underlayer, you will not achieve a smooth see-through effect with it. It is good for textured style painting though. See the image below for a comparison. Hopefully you can see it as this was quite hard to photograph! The difference is more obvious in real life. Try it out and see for yourself.
As seen above, a purple overlay was painted over base layers of Cerulean and Winsor Blue (Red Shade). The purple mix overlaid is a transparent mix. As you will see in the Cerulean example, it appears less crisp and quite mottled by the granulation. It also looks a little flatter where transparency is concerned. The Winsor Blue (Red Shade) underlay appears crisper and more see-through. So, if you are looking for a lighter blue underlay but with a slight yellow bias, just add a teensy bit of Winsor Lemon to Winsor Blue (Red Shade) and you will have a lovely smooth Cerulean look-alike!
Green bias – those which will cool a mix or are more green in appearance. Further along the image above are the very green bias blues, turquoise. The greener a blue is, the more vivid it will be when mixing greens. It will need to be tamed by adding a tiny bit of red to make a more natural mix. Add Quinacridone Red (QR) to Phthalo Turquoise (PT) and you will make a muted purple/mauve/burgundy because of the green bias. Add QR to Ultramarine Green Shade (UGS), a less green biased blue, and you will make brighter purple and mauve. This is because the green bias adds more yellow to the mix muting it down. Yellow and blue make green (green/blue), plus red makes brown!
Red bias – those which will add warmth a mix. Add Transparent Yellow to a red bias blue and you will make more natural greens. Add it to Winsor Blue (Green Shade), a green bias blue, and you will make vibrant but less natural emerald greens. Red will need to be added to tame these mixes.
Nearly greens – those which have a definite green bias. You will notice above that Cobalt Turquoise and Cobalt Turquoise Light are semi-opaque. They also granulate. I would only use these for textured, looser style painting.
Nearly blacks – those blues which are very dark pigments with a blue bias. Notice also that both Indigo and Payne’s Grey are opaque and semi-opaque. These pigments contain black which gives them their opacity. Both have the same colour index numbers – PB15 • PBk6 • PV19 but in different proportions. The black colour index will make a mix dense and flat looking. These pigments are only useful in extremely dark areas although darkening a mix is much better using transparent or semi-transparent primaries. If done this way, it will still have a see-through feel despite being almost black.
My underlay blue choices
My favourite blues for underlaying are Winsor Blue (Red Shade), French Ultramarine and Cobalt Blue. Winsor Blue (Red Shade) is particularly good when watered down as it is really smooth. It is a lovely bright red biased blue. Make sure you paint it on very pale though as it is one of the stronger pigments. It is also one of my favourite blues to mix with. French Ultramarine, although it granulates, when used very thinly it adds a nice coolness. It is a blue with little to no bias. It is great for edging highlights on dark coloured leaves like holly. Cobalt is a lighter blue which also granulates a little. Again, used thinly, it adds a nice coolness to the layers above.
Well that’s it for this month! If you like, please do message me with any suggestions of which colours you’d like to discuss next.
Until the 24th of next month, I hope you all have a great August. Maybe even have a break and be able to spend a few days away from home!
jibotanicals 