Dark red

Maroon
Color coordinates
Hex triplet	#800000
sRGBB  (r, g, b)	(128, 0, 0)
HSV       (h, s, v)	(0°, 100%, 50%)
Source	HTML/CSS
B: Normalized to [0–255] (byte)

Maroon (Crayola)
Color coordinates
Hex triplet	#C32148
sRGBB  (r, g, b)	(195, 33, 72)
CMYKH   (c, m, y, k)	(0, 83, 63, 24)
HSV       (h, s, v)	(346°, 83%, 76%)
Source	Crayola
B: Normalized to [0–255] (byte) H: Normalized to [0–100] (hundred)

Maroon (X11)
Color coordinates
Hex triplet	#B03060
sRGBB  (r, g, b)	(176, 48, 96)
HSV       (h, s, v)	(338°, 73%, 69%)
Source	X11 color names#Color name clashes
B: Normalized to [0–255] (byte)

Dark Red
Color coordinates
Hex triplet	#8B0000
sRGBB  (r, g, b)	(139, 0, 0)
CMYKH   (c, m, y, k)	(0, 100, 100, 45)
HSV       (h, s, v)	(0°, 100%, 55%)
Source	X11
B: Normalized to [0–255] (byte) H: Normalized to [0–100] (hundred)

Maroon (US & UK /məˈruːn/ mə-ROON,Australia /məˈroʊn/ mə-RONE) is a dark brownish red color which takes its name from the French word marron, or chestnut.

The Oxford English Dictionary describes it as "a brownish crimson or claret color."

In the RGB model used to create colors on computer screens and televisions, maroon is created by turning down the brightness of pure red to about one half.

Maroon is derived from French marron ("chestnut"), itself from the Italian marrone, from the medieval Greek maraon.

The first recorded use of maroon as a color name in English was in 1789.

Displayed on the right is the bright tone of maroon that was designated as maroon in Crayola crayons beginning in 1949.

It is a bright medium shade of maroon halfway between brown and rose.

The color halfway between brown and rose is crimson, so this color is also a tone of crimson.

Displayed on the right is the color rich maroon, i.e. maroon as defined in the X11 color names, which is much brighter and more toned toward rose than the HTML/CSS maroon shown above.

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Wikipedia