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Recognised as Colour

#571B42

  • #571B42
  • Magenta
  • Dark
  • Nearest: Dark slateblue

#571B42 is a magenta with RGB values 87, 27, 66 and HSL 321°, 53%, 22%. It is a dark colour, so white text on it reaches 12.8:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#571B42#571B42
HEX#571B42
RGBrgb(87, 27, 66)
RGB (0–1)0.3412, 0.1059, 0.2588
RGB percentages34.1%, 10.6%, 25.9%
HSLhsl(321, 52.6%, 22.4%)
HSV / HSBhsv(321, 69%, 34.1%)
CMYK0%, 69%, 24.1%, 65.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,708,610
CSS custom property--colour: #571B42;

Brightness & contrast

Relative luminance0.03203WCAG 2.x, 0 is black and 1 is white
Perceived brightness56.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.8:1
Contrast with white12.8:1WCAG normal text: AAA
Contrast with black1.64:1WCAG normal text: Fail
Greyscale equivalent#2B2B2B
Inverted#A8E4BD

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#212C43no red cones; affects about 1% of men; ΔE 30.2 from the original
Deuteranopia#323641no green cones; the most common form, about 1% of men; ΔE 31.3 from the original
Tritanopia#5D1B2Bno blue cones; rare, and affects men and women equally; ΔE 16.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text12.8:1WCAG large text: AAA
Contrast with black, large text1.64:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 33.8Purple · ΔE 38.4Midnight blue · ΔE 39.5Black · ΔE 39.8Rebecca purple · ΔE 40.1Dim grey · ΔE 41.3
Nearest named CSS colourDark slateblue (#483D8B)ΔE 33.82, a distinctly different colour
Hue familymagenta
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1B5730
Analogous#4E1B57, #571B24
Triadic#42571B, #1B4257
Split complementary#24571B, #1B574E
Tetradic#574E1B, #1B5730, #1B2457

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D26CAE
Lighter +30%#C54699
Lighter +20%#A5337D
Lighter +10%#7E2760
Darker −10%#300F24
Darker −20%#090307
Darker −30%#000000
Darker −40%#000000
More saturated +25%#650D46
Less saturated −25%#49293E

Channel breakdown

R87
G27
B66
Red87 (34.1%)
Green27 (10.6%)
Blue66 (25.9%)
Hue321°
Saturation (HSL)52.63%
Lightness22.35%
Dominant channelRed
Hex per channelR 57 · G 1B · B 42

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Every value on this page was computed from “571b42” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.