It's pretty obvious that gp is asking for the brightest blue to be as bright as the brightest white but no brighter.
replyAnd no, #fff is not a "device color". The syntax originates from the web where sRGB is implied ever since we had displays brighter than that.
It wasn't obvious to me -- I misread "blue" as "white".
reply`#fff` is device color, it's short for `#ffffff` which is 24-bit RGB that predates sRGB, as does true color device support. I was sending 24-bit RGB to VESA-compliant graphics cards before sRGB became a thing. `#fff` was supported by Photoshop and Macromedia products as straightforward device colour format, before sRGB was adopted by at least the latter, mind you. The use by CSS is co-incidental, not where the format was introduced.
I meant #fff as the nominal white point, which is not the brightest white the device can produce. It's how #fff is displayed on Firefox on an otherwise HDR screen. Assuming the screen is not set to max brightness and otherwise HDR capable, it means that it's not the max brightness an individual pixel/subpixel can produce, so desaturating blue color just to make it brighter can be an unnecessary compromise only dictated by color representation in the software stack.
replyI have been blind and read your "blue" as "white", sorry. Most of my comment only makes sense in that umm, light, pardon the pun.
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