Module:Colors - Revision history

Snep at 00:08, 12 December 2024

2024-12-12T00:08:16Z

← Older revision		Revision as of 00:08, 12 December 2024
Line 98:		Line 98:
	local bh, bs, bv = p.hexToHsv(backColorHex)		local bh, bs, bv = p.hexToHsv(backColorHex)
	if bv < 0.5 and v < 0.5 then		if bv < 0.5 and v < 0.5 then
	v = 0.8		v = 0.6
	elseif bv >= 0.5 and v >= 0.5 then		elseif bv >= 0.5 and v >= 0.5 then
	v = 0.4		v = 0.5
	end		end
	return p.hsvToHex(h, s, v)		return p.hsvToHex(h, s, v)

Snep at 00:07, 12 December 2024

2024-12-12T00:07:29Z

← Older revision		Revision as of 00:07, 12 December 2024
Line 98:		Line 98:
	local bh, bs, bv = p.hexToHsv(backColorHex)		local bh, bs, bv = p.hexToHsv(backColorHex)
	if bv < 0.5 and v < 0.5 then		if bv < 0.5 and v < 0.5 then
	v = ~~v +~~ 0.5		v = 0.8
	elseif bv >= 0.5 and v >= 0.5 then		elseif bv >= 0.5 and v >= 0.5 then
	v = ~~v -~~ 0.5		v = 0.4
	end		end
	return p.hsvToHex(h, s, v)		return p.hsvToHex(h, s, v)

Snep at 23:56, 11 December 2024

2024-12-11T23:56:45Z

← Older revision		Revision as of 23:56, 11 December 2024
Line 92:		Line 92:
	local r, g, b = p.hsvToRgb(h, s, v)		local r, g, b = p.hsvToRgb(h, s, v)
	return p.rgbToHex(r, g, b)		return p.rgbToHex(r, g, b)
			end

			function p.findHighContrastColor(colorHex, backColorHex)
			local h, s, v = p.hexToHsv(colorHex)
			local bh, bs, bv = p.hexToHsv(backColorHex)
			if bv < 0.5 and v < 0.5 then
			v = v + 0.5
			elseif bv >= 0.5 and v >= 0.5 then
			v = v - 0.5
			end
			return p.hsvToHex(h, s, v)
	end		end

	return p		return p

Snep: Created page with "local p = {} -- https://gist.github.com/fernandohenriques/12661bf250c8c2d8047188222cab7e28 function p.hexToRgb(hex) local hexR = hex:gsub("#","") if hexR:len() == 3 then return (tonumber("0x"..hexR:sub(1,1))17)/255, (tonumber("0x"..hexR:sub(2,2))17)/255, (tonumber("0x"..hexR:sub(3,3))*17)/255 else return tonumber("0x"..hexR:sub(1,2))/255, tonumber("0x"..hexR:sub(3,4))/255, tonumber("0x"..hexR:sub(5,6))/255 end end function p.rgbToHex(r, g,..."

2024-12-11T23:51:45Z

Created page with "local p = {} -- https://gist.github.com/fernandohenriques/12661bf250c8c2d8047188222cab7e28 function p.hexToRgb(hex) local hexR = hex:gsub("#","") if hexR:len() == 3 then return (tonumber("0x"..hexR:sub(1,1))*17)/255, (tonumber("0x"..hexR:sub(2,2))*17)/255, (tonumber("0x"..hexR:sub(3,3))*17)/255 else return tonumber("0x"..hexR:sub(1,2))/255, tonumber("0x"..hexR:sub(3,4))/255, tonumber("0x"..hexR:sub(5,6))/255 end end function p.rgbToHex(r, g,..."

New page

local p = {}

-- https://gist.github.com/fernandohenriques/12661bf250c8c2d8047188222cab7e28
function p.hexToRgb(hex)
local hexR = hex:gsub("#","")
if hexR:len() == 3 then
return (tonumber("0x"..hexR:sub(1,1))*17)/255, (tonumber("0x"..hexR:sub(2,2))*17)/255, (tonumber("0x"..hexR:sub(3,3))*17)/255
else
return tonumber("0x"..hexR:sub(1,2))/255, tonumber("0x"..hexR:sub(3,4))/255, tonumber("0x"..hexR:sub(5,6))/255
end
end

function p.rgbToHex(r, g, b)
local rp = math.floor(r * 255)
local gp = math.floor(g * 255)
local bp = math.floor(b * 255)
local raw = (rp * 0x10000) + (gp * 0x100) + bp
return string.format("%x", raw)
end

-- HSV/RGB formulas from https://en.wikipedia.org/wiki/HSL_and_HSV#Color_conversion_formulae

function p.rgbToHsv(r, g, b)
local cMax = math.max(r, g, b)
local cMin = math.min(r, g, b)
local delta = cMax - cMin

local h, s, v

-- hue
if cMax == cMin then
h = 0
else
if cMax == r then
h = (g - b) / delta
if h < 0 then
h = h + 6
end
elseif cMax == g then
h = ((b - r) / delta) + 2
elseif cMax == b then
h = ((r - g) / delta) + 4
end
h = (h / 6) -- rescale from 0 to 1
end

-- saturation
if cMax == 0 then
s = 0
else
s = delta / cMax
end

-- value
v = cMax

return h, s, v
end

function p.hsvToRgb(h, s, v)
local c = s * v
local hp = h * 6
local hpf = math.floor(hp)
local x = c * (1 - math.abs(hp % 2 - 1))

local r1, g1, b1
if hpf == 0 then
r1, g1, b1 = c, x, 0
elseif hpf == 1 then
r1, g1, b1 = x, c, 0
elseif hpf == 2 then
r1, g1, b1 = 0, c, x
elseif hpf == 3 then
r1, g1, b1 = 0, x, c
elseif hpf == 4 then
r1, g1, b1 = x, 0, c
elseif hpf == 5 then
r1, g1, b1 = c, 0, x
end

local m = v - c

return r1 + m, g1 + m, b1 + m
end

function p.hexToHsv(hex)
local r, g, b = p.hexToRgb(hex)
return p.rgbToHsv(r, g, b)
end

function p.hsvToHex(h, s, v)
local r, g, b = p.hsvToRgb(h, s, v)
return p.rgbToHex(r, g, b)
end

return p