I'm working on something outside of Scratch that involves a lot of colors. (About 50 - 100) I want the colors to be smoothly transitioned, and Scratch colors codes are very smooth. Also, the number of colors in Scratch is definitely better for basic understanding since HEX color codes involve Hexadecimal color coding. The thing I'm working on uses HEX color codes and nothing else, so I'm wondering if there is any way to translate them.

Scratch uses HSV (hue, saturation, and value/brightness). Here's how you would do that in Scratch:

1. Convert the original HSV values to RGB space. This was derived from https://en.wikipedia.org/wiki/HSL_and_HSV#HSV_to_RGBThis was much more concise as a formula - if only Scratch had switch statements or at least “else if”…

define hsv to rgb (h) (s) (v)
set [r v] to [0]
set [g v] to [0]
set [b v] to [0]
set [_i v] to ([floor v] of ((h) * (6))
set [_f v] to ((h) * (_i))
set [_p v] to ((v) * ((1) - (s)))
set [_q v] to ((v) * ((1) - ((f) * (s))))
set [_t v] to ((v) * ((1) - (((1) - (_f)) * (s))))
set [_space v] to ((_i) mod (6))
if <(_space) = [0]> then
set [r v] to (v)
set [g v] to (_t)
set [b v] to (_p)
else
if <(_space) = [1]> then
set [r v] to (_q)
set [g v] to (v)
set [b v] to (_p)
else
if <(_space) = [2]> then
set [r v] to (_p)
set [g v] to (v)
set [b v] to (_t)
else
if <(_space) = [3]> then
set [r v] to (_p)
set [g v] to (_q)
set [b v] to (v)
else
if <(_space) = [4]> then
set [r v] to (_t)
set [g v] to (_p)
set [b v] to (v)
else
if <(_space) = [5]> then
set [r v] to (v)
set [g v] to (_p)
set [b v] to (_q)
end
end
end
end
end
end

2. Convert the RGB values into hexadecimal

define to base16 (base10)
set [_digits v] to [0123456789abcdef]
set [base16 v] to []
repeat until <(base10) < [0]>
set [base16 v] to (join (letter ((base10) mod (16)) of (_digits)) (base16))
set [base10 v] to ((base10) / (16))
end

define rgb part to hex (part)
to base16 (part)
if <(length of (base16)) = [1]> then
set [part v] to (join (0) (base16))
else
set [part v] to (base16)
end

define rgb to hex (r) (g) (b)
set [hex v] to [#]
rgb part to hex (r)
set [hex v] to (join (hex) (part))
rgb part to hex (g)
set [hex v] to (join (hex) (part))
rgb part to hex (b)
set [hex v] to (join (hex) (part))

3. Combine it!

when green flag clicked
ask [Enter a hue value] and wait
set [h v] to (answer)
ask [Enter a saturation value] and wait
set [s v] to (answer)
ask [Enter a brightness value] and wait
set [v v] to (answer)
hsv to rgb (h) (s) (v) ::custom
rgb to hex (r) (g) (b) ::custom
say (join [The hex for that is: ] (hex))

Or, just hack the color reporter into the

(join () ())

block, and let Scratch do the work.
Here's a link to a project with it, which you can backpack the block from:
https://scratch.mit.edu/projects/1036286267/

I just search up the conversion to scratch colors lol