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Regarding the example in the Wiki page: Is it possible to use hex colors codes or rgb color codes? The example uses color name.

by colmvp 10y ago

TazeTSchnitzel 10y ago
It is indeed! Color causes the affected text to be displayed in a specified color. The "color" command requires a parameter that is specified by using the "param" command. The parameter data can be one of the following: red blue green yellow cyan magenta black white or an RGB color value in the form: ####,####,#### where '#' is a hexadecimal digit '0' through '9', 'A' through 'F', or 'a' through 'f'. The three 4-digit hexadecimal values are the RGB values for red, green, and blue respectively, where each component is expressed as an unsigned value between 0 (0000) and 65535 (FFFF). The default color for the message is unspecified, though black is a common choice in many environments. When nested, the inner "color" command takes precedence. (https://tools.ietf.org/html/rfc1896#page-5 https://tools.ietf.org/html/rfc1896#page-5) Odd that it's 96bpp colour, of all things.
mschuster91 10y ago
In fact, you have even more options, not just two: 1) RGB: #rrggbb (rgb hex) / rgb(r,g,b) (rgb int 0-255) / rgba(r,g,b,a) (as before, plus alpha). In addition, rgb/rgba support percentage values instead of 0-255. 2) red (color names) 3) hsl(h,s,l) 4) cmyk(c,m,y,k) For compatibility with anything except Thunderbird (which supports all four formats IIRC), stick with #rrggbb or plaintext names. Webmailers are especially prone to filtering by regex (ugh), and stripping out everything they don't know.
- nightpool 10y ago
  I'm not seeing that on the text/enriched spec? You might be thinking of HTML email.

Regarding the example in the Wiki page: Is it possible to use hex colors codes or rgb color codes? The example uses color name.

by colmvp 10y ago

Regarding the example in the Wiki page: Is it possible to use hex colors codes or rgb color codes? The example uses color name.

TazeTSchnitzel 10y ago

It is indeed! Color causes the affected text to be displayed in a specified color. The "color" command requires a parameter that is specified by using the "param" command. The parameter data can be one of the following: red blue green yellow cyan magenta black white or an RGB color value in the form: ####,####,#### where '#' is a hexadecimal digit '0' through '9', 'A' through 'F', or 'a' through 'f'. The three 4-digit hexadecimal values are the RGB values for red, green, and blue respectively, where each component is expressed as an unsigned value between 0 (0000) and 65535 (FFFF). The default color for the message is unspecified, though black is a common choice in many environments. When nested, the inner "color" command takes precedence. (https://tools.ietf.org/html/rfc1896#page-5 https://tools.ietf.org/html/rfc1896#page-5) Odd that it's 96bpp colour, of all things.

mschuster91 10y ago

In fact, you have even more options, not just two: 1) RGB: #rrggbb (rgb hex) / rgb(r,g,b) (rgb int 0-255) / rgba(r,g,b,a) (as before, plus alpha). In addition, rgb/rgba support percentage values instead of 0-255. 2) red (color names) 3) hsl(h,s,l) 4) cmyk(c,m,y,k) For compatibility with anything except Thunderbird (which supports all four formats IIRC), stick with #rrggbb or plaintext names. Webmailers are especially prone to filtering by regex (ugh), and stripping out everything they don't know.

nightpool 10y ago
I'm not seeing that on the text/enriched spec? You might be thinking of HTML email.