Visible spectrum on a linear scale
Or how may look the spectrum of an equal energy illuminant (E), mixed with some white light on a black background.Range : 390 nm - 710 nmColor space : sRGB / Rec. 709White point :  D65Tone curve : Gamma 2.2 + Sigmoid contrast curveGamut mapping : Spectrum gamut scaled down to fit into extended destination gamut (monochromatic primaries). White added ≈ + 0,409 RGB linear.Observer : CIE 2012 2° "physiologically-relevant" (0.1 nm)
Encoding : 8 bpc full SVG (no bitmap)
Own work
Bhutajata