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Recognised as Colour

#550B40

  • #550B40
  • Magenta
  • Dark
  • Nearest: Purple

#550B40 is a magenta with RGB values 85, 11, 64 and HSL 317°, 77%, 19%. It is a dark colour, so white text on it reaches 13.9:1 contrast (AAA for normal text). The nearest named colour is Purple.

Colour values

#550B40#550B40
HEX#550B40
RGBrgb(85, 11, 64)
RGB (0–1)0.3333, 0.0431, 0.251
RGB percentages33.3%, 4.3%, 25.1%
HSLhsl(317, 77.1%, 18.8%)
HSV / HSBhsv(317, 87.1%, 33.3%)
CMYK0%, 87.1%, 24.7%, 66.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,573,440
CSS custom property--colour: #550B40;

Brightness & contrast

Relative luminance0.02541WCAG 2.x, 0 is black and 1 is white
Perceived brightness51.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.92:1
Contrast with white13.92:1WCAG normal text: AAA
Contrast with black1.51:1WCAG normal text: Fail
Greyscale equivalent#1F1F1F
Inverted#AAF4BF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#142541no red cones; affects about 1% of men; ΔE 35 from the original
Deuteranopia#2B303Eno green cones; the most common form, about 1% of men; ΔE 36.2 from the original
Tritanopia#5B0C25no blue cones; rare, and affects men and women equally; ΔE 19.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text13.92:1WCAG large text: AAA
Contrast with black, large text1.51:1WCAG large text: Fail

Named colours

Purple · ΔE 33.6Dark slateblue · ΔE 33.6Midnight blue · ΔE 36.9Rebecca purple · ΔE 37.4Dark magenta · ΔE 38.4Indigo · ΔE 42.5
Nearest named CSS colourPurple (#800080)ΔE 33.58, a distinctly different colour
Hue familymagenta
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#0B5520
Analogous#450B55, #550B1B
Triadic#40550B, #0B4055
Split complementary#1B550B, #0B5545
Tetradic#55450B, #0B5520, #0B1B55

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E745B9
Lighter +30%#DC1DA6
Lighter +20%#AF1784
Lighter +10%#821162
Darker −10%#28051E
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#600045
Less saturated −25%#49173B

Channel breakdown

R85
G11
B64
Red85 (33.3%)
Green11 (4.3%)
Blue64 (25.1%)
Hue317.03°
Saturation (HSL)77.08%
Lightness18.82%
Dominant channelRed
Hex per channelR 55 · G 0B · B 40

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Every value on this page was computed from “550b40” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.