The color is teal, the mood is 'bubbly'. Essentially, khromat laughter.
The color is peach, the mood is mischevious. Pastels 'soften' the emotion, and pink is notoriously thought of as a 'sex' related color, but in actuality the range towards coral pink -- pastel orange -- is the more carnal of the colors, whereas the cooler colors like rose pink -- pastel purple -- are more thoughtful. Blushing, a combination of emotional responses (embarrassment) based upon thoughts, tends to be pastel red... carnation pink... 'naughty' thoughts can also cause a neon pink or pastel magenta color to present itself.
The color is periwinkle, the mood is wistful. This is the opposite of the 'pensive' color, bright in hue to the extent of vibrant shadows, almost metallic in the way light creates strong contrasts. Like 'pensive', the purple color refers to a mental condition -- in this case, remembering a happy event or fantasizing something positive. Thinking about what you could do with a lottery win would produce a periwinkle color. :)
The limitations of human eyes, monitors and browsers means I can't guarantee the colors are accurate; Often a color name itself may be fuzzy (teal is more green than turquoise, even if the stone turquoise found in Arizona is significantly more green than the same mineral found in the Baltics which is what the colorname is referencing), so I'm only going to be making moodicon avatars for the most obvious emotional states. And note that these are only for basic emotional states -- khromatai developed a language using their colorshift abilities which is much more complex, taking into account how the color appears on the fur, what part of the body the color appears, animations and transitions. Before a khromat ever learns this more subtle use of their colorshift abilities, they only demonstrate 'raw' ideas -- emotional states -- and the most basic function of the ability, which is camouflage.