tag:blogger.com,1999:blog-8941519150769362030.post290670569824989431..comments2024-02-07T23:49:51.625-08:00Comments on Ask Susie - Watercolor Q & A: Phthalo Blue -- warm or cool?Susie Shorthttp://www.blogger.com/profile/06884417069008841197noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-8941519150769362030.post-52264176764222794402013-09-12T21:49:20.549-07:002013-09-12T21:49:20.549-07:00i love this debate. I would say that we should con...i love this debate. I would say that we should consider why we might care which blue is cool and which blue is warm? When we are trying to achieve atmospheric perspective on a 2-dimensional surface, I submit that warmer, darker pigment pops things forward, right? I think greener blues tend to recede, and are therefore cooler; And the more violet blues tend to seem closer. If you have ever gazed out over receding mountain ranges into the distance, you will know that the blues get darker and more violet as the ranges are closer to the viewing point. So when painting, I would opt to use ultramarine blue for the closer mountains, and a high value cooler (greener) blue for the very distant mountains. Phthalo tends to be a greener blue, but since it is also a very intense (bright) hue, it breaks the "cool recedes" rule. Just my 2 cents. Colleen Rhttps://www.blogger.com/profile/15083099397064601305noreply@blogger.comtag:blogger.com,1999:blog-8941519150769362030.post-69432842982206212512013-04-29T16:27:41.813-07:002013-04-29T16:27:41.813-07:00Thanks for your comment!
I guess the debate will c...Thanks for your comment!<br />I guess the debate will continue.<br />Which blue is warmer and which is cooler becomes a matter of personal interpretation. Undisputedly all blues are cool.<br />Susie Susie Shorthttps://www.blogger.com/profile/06884417069008841197noreply@blogger.comtag:blogger.com,1999:blog-8941519150769362030.post-73978406225731551042013-04-29T07:47:57.912-07:002013-04-29T07:47:57.912-07:00Hi Susie ... here's the way I see it ... ...Hi Susie ... here's the way I see it ... the Colour Wheel was devised by 'bending' the two opposite ends of the Colour Spectrum until they joined and formed a circle. The spectrum has red at one end (the Warm end), and Violet at the other end (the Cool end). When the Wheel is formed from the Spectrum, these two 'ends' sit next to each other.<br /> <br />Common usage by anyone not familiar with the actual origins of the Colour Wheel will surmise that since Violet (purple) sits next to Red on the wheel, then it must be warmer than the Blue which sits on its other side. <br /><br />However, if we look beyond the wheel to the original source - the Spectrum, we see that this is not the case at all. Violet is a cool colour. <br /><br />Therefore, Ultramarine blue would be cooler than Thalo blue, which is actually closer to the warm end of the spectrum, and therefore would be warmer than Ultramarine. <br /><br />This question of Ultramarine vs Thalo blue has been widely debated and tossed around, and I suspect part of the questioning comes from the fact that reference is being made to just the colour Wheel, which is in itself a slightly misleading tool because of the manner in which it was formed. <br /><br />cheers<br />Sharon<br />Sharon Hickshttp://www.sharonhicksfineart.comnoreply@blogger.com