As with Munsell, the Value of colors in CIELAB increase as they rise up the central L* (Lightness) axis. Looking at Figure 2 below, if you are familiar with the Munsell color system, you will immediately notice how CIELAB resembles the former. Photoshop’s LAB mode is based upon the CIELAB color model developed in 1976 by the French International Commission on Illumination. While there is a learning curve to understanding this color mode, it would prove to answer all my requirements for the digital color system I was seeking. Unsatisfied with all the other color modes available in Photoshop, I finally focused my attention on the most mysterious one: LAB. While I found the HSB color mode to be an improvement over either the CMYK or RGB modes for defining colors, I still longed for Munsell’s Chroma and Value over this mode’s Saturation and Brightness. Saturation spans the horizontal axis and Brightness spans the vertical axis. The 150° Hue angle is shown filling the “picked color” chart. A decidedly unsaturated dark color can have a high Saturation value, and a mid-gray value color can have a high Brightness value (see the upper and lower right corners of the “picked color” chart in Figure 1).įigure 1: Example of the HSB color mode in the Adobe Color Picker. The experience started off great.īut it was in this color mode’s Saturation and Brightness components that I became frustrated. I knew how one color related to another by how far apart their Hue angles were. Like the Munsell color system, I could choose a Hue angle for colors. I eventually migrated towards the HSB color mode. I could look at a Pantone process color guide, find the swatch matching closest to Yellow Ochre, for example, and then assign either the CMYK or RGB values in the Adobe Color Picker (similar to the process I’ve done many times before for graphic design projects).īut I often found the process of painting with these Pantone chosen colors frustrating because: A) I rarely found swatches that were a clear match to my artist pigments B) judging the resulting mixed colors and how they might print was often tedious and, ultimately, C) it was mostly guess work defining the characteristics of colors and how they relate to one another with this method. LAB (Lightness axis, a* color axis, and b* color axis)īecause of my familiarity with the CMYK and RGB color modes, I initially gravitated toward exploring them for defining colors in digital painting.Then there are the two that you are probably less familiar with: RGB (red, green, and blue) which are specific light wavelengths used for displaying millions of colors on digital screens.CMYK (cyan, magenta, yellow, and black) which are the inks used for reproducing a large range of colors in print.The two that you are probably already familiar with are: Inherently, Photoshop has four color models to pick from for specifying colors. The journey to create a digital color wheel begins with four color modes Note: The Munsell color system defines colors by three distinct characteristics: Hue, Value, and Chroma. In short, I wanted something like the Munsell color system for Photoshop. Easy to determine whether colors are achievable for reproduction in print (a.k.a., “within gamut”), or unattainably outside gamut - and hence should be banned from my digital palette.Easy to define the location of colors and visualize how they relate to one another in the digital universe and. Easy to access while painting in Photoshop (obviously).Questions like this launched me on a quest to find a system for accurately visualizing and then choosing digital colors. But where is Flake White, Yellow Ochre and Cadmium Red in the digital universe? Where do various flesh tones reside? However, switching to digital painting presented new challenges to solve - many relating to color.įor example, I know how to mix Flake White with Yellow Ochre and a touch of Cadmium Red to achieve a flesh tone. Working digitally eliminates the intermediate step of taking physical artwork and scanning it into a digital form for reproduction (which can result in unexpected value and color shifts depending on whoever is operating the scanner). Most of my work as an illustrator eventually ends up in print, so making the switch was logical. In 2014, I decided to make the leap from being an artist who works with traditional pigments to an artist who works digitally with a pen and tablet in Photoshop. My journey to apply the Munsell color system to Photoshop.
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