As people become more aware of the pigments in the paint they are using, they start to notice that there are a number of pigments that crop up in completely different coloured paints.
PV19 - pink and rose to crimson to violet
PB36 - turquoise and teal to greenish blue
PR101 - transparent burnt orange to granulating burnt orange to earthy red to very opaque earthy red
and
PBr7 - yellow earth to warm orange browns to dark orange browns to dark cool browns
- are some of the most schizophrenic!
Have a look at the PBr7 and PR101 section in
this page of my website and you'll see what I mean. Some pigments cover a small range of colours, like PB29 Ultramarine, but others seem to cover a very large range not only of hue but also of characteristics. I'll look at PV19 here.
PV19 has a more rose version and a more violet version, though it also appears as a crimson (Alizarin Crimson Quinacridone by Da Vinci) and a dusky pink (rose Madder Permanent Hue by Art Spectrum.) Generally speaking, the more rose version will be called a Quinacridone rose/permanent rose colour where the more violet version will be called Quinacridone Violet or perhaps a magenta or mauve, but it does make it a little difficult to choose a colour based on pigments alone. As always, you need to look at the brand and the name to be sure of what you are getting.
![](https://2.bp.blogspot.com/-VpNNGnD9Zz0/VmEAB7lDVZI/AAAAAAAADPo/Q8YoyXCSR8o/s320/Permanent%2BRose%2BWN.jpg)
![](https://1.bp.blogspot.com/-sk0vhNPUX30/VmEAbnyTrHI/AAAAAAAADQM/pzYr12MRktU/s320/Quin%2Bred%2BDS.jpg)
![](https://3.bp.blogspot.com/-qWlnBzoWtS4/VmEAcBcP_zI/AAAAAAAADQU/Eo3nGbI3354/s320/Quin%2BRed%2BQoR.jpg)
![](https://4.bp.blogspot.com/-iBQvocj3TFw/VmEAcUuv0NI/AAAAAAAADRA/fcDxH0z1qA4/s320/Quin%2Brose%2BDS.jpg)
![](https://3.bp.blogspot.com/-o0u032N32QY/VmEAcRZC3zI/AAAAAAAADQk/bWKnuZxetjI/s320/quin%2Brose%2BMG.jpg)
![](https://3.bp.blogspot.com/-cwJZaiGZHkg/VmEAcYQSO2I/AAAAAAAADQg/2caySYS2WTM/s320/Quin%2BRose%2BSQ.jpg)
![](https://2.bp.blogspot.com/-oXSfOwMWYFU/VmEAcYjRZNI/AAAAAAAADQw/KURh7Zr_bBc/s320/Quin%2BViolet%2BDV.jpeg)
![](https://1.bp.blogspot.com/-ZEixBnBRLKA/VmEAcXXgdwI/AAAAAAAADQ0/1LqwnWFRImw/s320/Quin%2BViolet%2BQoR.jpg)
![](https://2.bp.blogspot.com/-jDcrsAPuxMU/VmEAWRVpXFI/AAAAAAAADP8/4KAd_b5l1O4/s320/quinacridone%2Bviolet%2BDS.jpg)
![](https://3.bp.blogspot.com/-aYUc5x4ZPpE/VmEBM0mI2HI/AAAAAAAADSU/2MQ-F1vYZcE/s320/Ruby%2BRed%2BS.jpg)
![](https://4.bp.blogspot.com/-lEiv1uSFVhw/VmEBMxEZcNI/AAAAAAAADSQ/46WooY2DXmM/s320/rose%2Bred%2Bdeep%2BDV.jpg)
![](https://3.bp.blogspot.com/-wdFWxSDXu0M/VmEBMc9uw0I/AAAAAAAADSA/q1IpHfDptA0/s320/Rose%2BPale%2BLake%2BBX.jpeg)
![](https://2.bp.blogspot.com/-hsKa5EMxzbY/VmEBL8kjC6I/AAAAAAAADRw/V627TLmxqFI/s320/Rose%2BMadder%2Bperm%2Bhue%2BAS.jpg)
![](https://1.bp.blogspot.com/-lppPuewpaDs/VvhQ7L642EI/AAAAAAAAD3w/yJaej_O91J8Xv9NrHnog6PXZ9_GpJ0_gQ/s320/permanent%2Bmagenta%2BDR.jpg)
![](https://3.bp.blogspot.com/-mJuiCEaWSoA/VvhQ7R1jx2I/AAAAAAAAD30/zIn_AWIJxLMlNF8H6Qi_Nr7_9tfttUkRQ/s320/permanent%2Bmagenta%2BSH.jpg)
I love Quinacridone Rose as an excellent 'primary' red. It mixes beautiful purples with any blue, especially ultramarine, but also mixes pretty oranges and reds with a yellow. I find the Quinacridone Violet colour less useful as you can make a violet by adding a little blue to the rose, though you can't make a pink by starting with the violet.
The crimson hues made with PV19 are also useful to consider in a limited palette - Alizarin Crimson (quinacridone) by Da Vinci for example is a more crimson red, but still mixes nice purples and oranges.