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This table is used in Wikipedia:Lua requests/Archive 1#Color conversion (RGB)

This table is intended to be improved.

RGB and CSS defined color space notations[2]
color space	data structure	# arg	example(s)	example color value	source	alternative names, versions	number of colors	wiki page	note
RGB	#hex24	1	#cd5c5c	#cd5c5c	W3C, rgb
RGB	hex24	1	cd5c5c cd 5c 5c	#cd5c5c					If not a named color (6 characters), 6 hex chars can be concluded to be RGBhex6
RGB	#hex3	1	#abc	#aabbcc	W3C, rgb				todo: check logic
RGB	basicname	1	maroon	#800000	[3]	CSS 1–2.0 / HTML 3.2–4 / VGA color names	16	web colors	HTML 4.01 names
RGB	w3cname	1	indianred indian red	#cd5c5c	W3C, color keywords	X11	147	X11 color names	Multiple versions are around, sometimes clashing.
RGB	tripdec	3	rgb(255,0,0)				16^3 = ~16M
RGB	tripperc	3	rgb(80%, 36%, 36%)						Values out of range (<0, >255/100%) are clipped.
RGB	tripmixed	3	rgb(80%, 120, 36%)						RGB can mix % and dec
RGB	triphex	3	rgb(c5, 10, a5)	#c510a5					All hex only. Technically possible; not W3C mentioned. Should never mix with dec values
RGB	red RGBgreen RGBblue	cc	1	#cc0000		similar for -green, -blue.			The red part value in RGB. Corresponds with #rr0000(?)
HSL	trip	3	hsl(0°, 53%, 58%) hsl(0, 53, 58)	#cd5c5c					hue:0° satur:53% light:58%. With or without °, %
HSL	tripnormalised	3	hsl(0, 0.53, 0.58)	#cd5c5c					normalsed into fractions (0 ... 1) (see W3C)
HSV	trip	3	hsv(0°, 55%, 80%)	#cd5c5c					for: hue:0° satur:53% value:580%. With or without °, %
RGB	Luminance	tbd					[4]		{{RGBColorToLum}} and more, for contrast ratio checking
(transp/op)	transparency opacity	4	0.2	20% opacity	W3C, transparent				transparency=future feature. opacity = 1-transparency. 0.0 (fully transparent) to 1.0 (fully opaque)
RGBA	RGBA	4	rgba(80%, 36%, 36%, 0.2)		W3C, transparent				transparency=future feature. 4th parameter is opacity/transparency
HSLA	HSLA	4	hsla(120, 100%, 50%, 0.2)		W3C, hsla				transparency=future feature. hsl with explicit opacity
1.^ "CSS Color Module Level 3 W3C Recommendation 07 June 2011". W3C. 2011-06-07. Retrieved 1013-02-25. {{cite web}}: Check date values in: |accessdate= (help)

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Color spaces

RGB and CSS defined color space notations[5]
color space	data structure	# arg	example(s)	example color value	source	alternative names, versions	number of colors	wiki page	note
RGB	triple hex 00-FF	1	#cd5c5c	#cd5c5c	W3C, rgb				alt: triplet 0-F (#abc)
RGB	name	1	maroon	#800000	[6]	CSS 1–2.0 / HTML 3.2–4 / VGA color names	16	web colors	HTML 4.01 names (X11 alt names)
RGB	w3cname	1	indianred indian red	#cd5c5c	W3C, color keywords	X11	147	X11 color names	Multiple versions are around, sometimes clashing.
RGB	trip separated	3	rgb(00, 9A, FF) rgb(80%, 36%, 36%) rgb(55, 0, 255) dec mixed						Values out of range (<0, >255/100%) are clipped (w3c).
RGB	triphex	3	rgb(c5, 10, a5)	#c510a5					All hex only. Technically possible; not W3C mentioned. Should never mix with dec values
RGB	red RGBgreen RGBblue	cc	1	#cc0000		similar for -green, -blue.			The red part value in RGB. Corresponds with #rr0000(?)
HSL	trip	3	hsl(0°, 53%, 58%) hsl(0, 53, 58)	#cd5c5c					hue:0° satur:53% light:58%. With or without °, %
HSL	tripnormalised	3	hsl(0, 0.53, 0.58)	#cd5c5c					normalsed into fractions (0 ... 1) (see W3C)
HSV	trip	3	hsv(0°, 55%, 80%)	#cd5c5c					for: hue:0° satur:53% value:580%. With or without °, %
RGB-lum	Luminance, cset contrast ratio						[7]		{{RGBColorToLum}} and more, for contrast ratio checking	W3C, transparent
RGBA	RGBA-transp	4	rgba(80%, 36%, 36%, 0.2)		W3C, transparent				0.0=transp, 1.0=opaque. parameter 4. HSLA w3c hsla
1.^ "CSS Color Module Level 3 W3C Recommendation 07 June 2011". W3C. 2011-06-07. Retrieved 1013-02-25. {{cite web}}: Check date values in: |accessdate= (help)

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