Solvedchanging surface.SetDrawColour with mixer

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changing surface.SetDrawColour with mixer

I'm having trouble changing the colour of a drawn crosshair using a color mixer.
This is the mixer

Code:

local CMixer = vgui.Create( "DColorMixer", panel3)
CMixer:Dock( 50, 20, 0, 0 )
CMixer:SetPalette( true )         
CMixer:SetAlphaBar( true )         
CMixer:SetColor( color_white )
local cross = CMixer:GetColor()

This is the crosshair

Code:

function crosshair()
surface.SetDrawColor(cross)
surface.DrawLine(670, 384, 680, 384)
surface.DrawLine(688, 384, 698, 384)
surface.DrawLine(684, 388, 684, 398)
surface.DrawLine(684, 380, 684, 370)
end
hook.Add("HUDPaint", "crosshair", crosshair)

Whenever I choose a color on the mixer, then press a button I've made that does the following when clicked it doesn't change the color of the drawn crosshair

Code:

crosschange.DoClick = function()
surface.SetDrawColor(cross)
end

What am I doing wrong?

im not familiar with with the colormixer but i think you have to do

Code:

surface.SetDrawColor(CMixer:GetColor())

Tried that aswell, it works fine while the menu is open, but whenever I close the menu it hits me with "attempt to call method 'GetColor' (a nil value)" because it can't get the color that the mixer chose if the menu isn't open.