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Recognised as Colour

#550D48

  • #550D48
  • Magenta
  • Dark
  • Nearest: Dark slateblue

#550D48 is a magenta with RGB values 85, 13, 72 and HSL 311°, 73%, 19%. It is a dark colour, so white text on it reaches 13.7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#550D48#550D48
HEX#550D48
RGBrgb(85, 13, 72)
RGB (0–1)0.3333, 0.051, 0.2824
RGB percentages33.3%, 5.1%, 28.2%
HSLhsl(310.8, 73.5%, 19.2%)
HSV / HSBhsv(310.8, 84.7%, 33.3%)
CMYK0%, 84.7%, 15.3%, 66.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,573,960
CSS custom property--colour: #550D48;

Brightness & contrast

Relative luminance0.02687WCAG 2.x, 0 is black and 1 is white
Perceived brightness53.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.66:1
Contrast with white13.66:1WCAG normal text: AAA
Contrast with black1.54:1WCAG normal text: Fail
Greyscale equivalent#212121
Inverted#AAF2B7

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0F274Ano red cones; affects about 1% of men; ΔE 34.3 from the original
Deuteranopia#293146no green cones; the most common form, about 1% of men; ΔE 35.7 from the original
Tritanopia#5A122Ano blue cones; rare, and affects men and women equally; ΔE 22.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text13.66:1WCAG large text: AAA
Contrast with black, large text1.54:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 29.8Purple · ΔE 29.9Midnight blue · ΔE 32.6Rebecca purple · ΔE 32.9Dark magenta · ΔE 34.9Indigo · ΔE 38
Nearest named CSS colourDark slateblue (#483D8B)ΔE 29.79, a distinctly different colour
Hue familymagenta
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#0D551A
Analogous#3E0D55, #550D24
Triadic#48550D, #0D4855
Split complementary#24550D, #0D553E
Tetradic#553E0D, #0D551A, #0D2455

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E34BC8
Lighter +30%#DA21B8
Lighter +20%#AD1B93
Lighter +10%#81146D
Darker −10%#290623
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#610150
Less saturated −25%#491940

Channel breakdown

R85
G13
B72
Red85 (33.3%)
Green13 (5.1%)
Blue72 (28.2%)
Hue310.83°
Saturation (HSL)73.47%
Lightness19.22%
Dominant channelRed
Hex per channelR 55 · G 0D · B 48

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Every value on this page was computed from “550d48” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.