I’ve been reading several wiki pages and checking different calculations, and creating visualizations of RGB cube projection onto a hexagon. And I’d like to post my understanding of this conversion. Since I find this conversion (representations of color models using geometric shapes) interesting, I’ll try to be as thorough as I can be. First, let’s … Read more
I think this is the most precise: function hsv_to_hsl(h, s, v) { // both hsv and hsl values are in [0, 1] var l = (2 – s) * v / 2; if (l != 0) { if (l == 1) { s = 0; } else if (l < 0.5) { s = s … Read more
In both CSS and SVG filters, there is no conversion into HSV or HSL – the hueRotation shorthands are using a linear matrix approximation in RGB space to perform the hue rotation. This doesn’t conserve saturation or brightness very well for small rotations and highly saturated colors – as you’re seeing. A true hue rotation, … Read more
The resulting HSV array has to be interpreted as three fractions. For some programs, if you want to express HSV as integers, you multiply the “H” value by 360 and the “S” and “V” values by 100. The HSV value you quote for your green shade RGB[126, 210, 22] is HSV [87, 81, 45] in … Read more
Garry Tan posted a Javascript solution on his blog (which he attributes to a now defunct mjijackson.com, but is archived here and the original author has a gist – thanks to user2441511). The code is re-posted below: HSL to RGB: /** * Converts an HSL color value to RGB. Conversion formula * adapted from http://en.wikipedia.org/wiki/HSL_color_space. … Read more