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Recognised as Colour

#540A37

  • #540A37
  • Magenta
  • Dark
  • Nearest: Dark slateblue

#540A37 is a magenta with RGB values 84, 10, 55 and HSL 324°, 79%, 18%. It is a dark colour, so white text on it reaches 14.2:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#540A37#540A37
HEX#540A37
RGBrgb(84, 10, 55)
RGB (0–1)0.3294, 0.0392, 0.2157
RGB percentages32.9%, 3.9%, 21.6%
HSLhsl(323.5, 78.7%, 18.4%)
HSV / HSBhsv(323.5, 88.1%, 32.9%)
CMYK0%, 88.1%, 34.5%, 67.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,507,639
CSS custom property--colour: #540A37;

Brightness & contrast

Relative luminance0.02378WCAG 2.x, 0 is black and 1 is white
Perceived brightness50.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.23:1
Contrast with white14.23:1WCAG normal text: AAA
Contrast with black1.48:1WCAG normal text: Fail
Greyscale equivalent#1D1D1D
Inverted#ABF5C8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#182238no red cones; affects about 1% of men; ΔE 34.4 from the original
Deuteranopia#2D2F35no green cones; the most common form, about 1% of men; ΔE 36.1 from the original
Tritanopia#5B0520no blue cones; rare, and affects men and women equally; ΔE 17.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text14.23:1WCAG large text: AAA
Contrast with black, large text1.48:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 38Purple · ΔE 38.3Black · ΔE 41.2Midnight blue · ΔE 41.8Rebecca purple · ΔE 42.5Dark magenta · ΔE 43
Nearest named CSS colourDark slateblue (#483D8B)ΔE 38.05, a distinctly different colour
Hue familymagenta
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#0A5427
Analogous#4C0A54, #540A12
Triadic#37540A, #0A3754
Split complementary#12540A, #0A544C
Tetradic#544C0A, #0A5427, #0A1254

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E842A7
Lighter +30%#DD1A91
Lighter +20%#AF1573
Lighter +10%#820F55
Darker −10%#260519
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#5E0039
Less saturated −25%#481634

Channel breakdown

R84
G10
B55
Red84 (32.9%)
Green10 (3.9%)
Blue55 (21.6%)
Hue323.51°
Saturation (HSL)78.72%
Lightness18.43%
Dominant channelRed
Hex per channelR 54 · G 0A · B 37

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Every value on this page was computed from “540a37” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.