Chromaticity in a sentence as a noun

Any chromaticity diagram that is filled completely is a lie.

Broken chromaticity diagrams are so common, each time the graphic is swapped, it's a toss up whether it's a correct one. And then edits reflect that, and common misconceptions.

All of the colors humans can see are represented on the CIE 1931 chromaticity diagram. Choose any three points within that color space and draw a triangle between them.

Turning down brightness enough to become bearable badly affects contrast and chromaticity. That is the good thing on dark mode: that colorful content remains unaffected.

This is all abstract arithmetic; I don't believe it's exclusively how musicians discovered chromaticity. That likely has multiple origins, one of which is likely about filling in the five "missing" half step "slots" in a diatonic mode.

In regards to your second link, I found this quote coming to mind while reading about your linkages to chromaticity: “Ineluctable modality of the visible: at least that if no more, thought through my eyes. Signatures of all things I am here to read, seaspawn and seawrack, the nearing tide, that rusty boot.

The reason that a given HSL / HSV implementation may not accurately deliver a given chromaticity vector has more to do with the nature of colour spaces than the model's implementation implicitly. So I disagree, it is misinformation, and the reasons for choosing a given color model / colour encoding scheme are varied.

Some modern styles definitely subvert this idea, embracing the full range of chromaticity - but without abandoning 12-TET, they are still playing with the audience's harmonic preconceptions that are based in conventional tonality.

Quote Examples using Chromaticity

Yes. Look for a "chromaticity diagram" to see the colors we can perceive. It is a convex shape, like a truncated parabola, and the pure colors are on the edge of the parabola curve. Any time you mix two pure colors, you end up inside the parabola instead of on the edge. Conversely, any color on the inside of the parabola cannot be a pure wavelength and must be a compound color. There are a lot of colors we call "yellow". Some are pure colors and some are compound colors. The ones that your monitor display are compound colors that cannot be found on the spectrum. A decent monitor will represent brilliant yellow colors fairly well. This is due to the low curvature of the edge of the chromaticity diagram in the green-red range, which in turn can be ascribed to the similarity of the response curve for the L and M cones in the eye, compared to the S cones.

Anonymous

Proper Noun Examples for Chromaticity

A given HSL / HSV implementation may not accurately deliver a given chromaticity vector ... In a technical sense, “chromaticity vector” is not very meaningful as a term when discussing gamma-corrected RGB coordinates, and is completely meaningless w/r/t HSL or HSV. Chromaticity is a precise technical term, referring to the projection of trichromatic matching functions onto a two-dimensional plane perpendicular to luminance. When people talk about “chromaticity” they usually either mean xy coordinates in xyY space, or sometimes u', v' coordinates, or very occasionally some other chromaticity plane, such as more recent spaces based on more explicit measurements of human cone responses. The Cr and Cb coordinates of a Y'CrCb model are sometimes referred to as “chromaticity” coordinates, but in a technical sense that is a wrong and misleading term to use. I’m not sure what “given chromaticity vector” you are talking about, but if you want to get chromaticity from R'G'B' values, you should first linearize them, then transform from RGB -> XYZ, and then divide by Y to find x and y.

Chromaticity definitions

noun

the quality of a color as determined by its dominant wavelength