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Recognised as Colour

#3D1840

  • #3D1840
  • Magenta
  • Dark
  • Nearest: Dark slateblue

#3D1840 is a magenta with RGB values 61, 24, 64 and HSL 296°, 45%, 17%. It is a dark colour, so white text on it reaches 15:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#3D1840#3D1840
HEX#3D1840
RGBrgb(61, 24, 64)
RGB (0–1)0.2392, 0.0941, 0.251
RGB percentages23.9%, 9.4%, 25.1%
HSLhsl(295.5, 45.5%, 17.3%)
HSV / HSBhsv(295.5, 62.5%, 25.1%)
CMYK4.7%, 62.5%, 0%, 74.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,003,904
CSS custom property--colour: #3D1840;

Brightness & contrast

Relative luminance0.02016WCAG 2.x, 0 is black and 1 is white
Perceived brightness43.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.97:1
Contrast with white14.97:1WCAG normal text: AAA
Contrast with black1.4:1WCAG normal text: Fail
Greyscale equivalent#232323
Inverted#C2E7BF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#122441no red cones; affects about 1% of men; ΔE 21.5 from the original
Deuteranopia#1E283Fno green cones; the most common form, about 1% of men; ΔE 21.8 from the original
Tritanopia#3E1D29no blue cones; rare, and affects men and women equally; ΔE 18.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.97:1WCAG large text: AAA
Contrast with black, large text1.4:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 28.9Midnight blue · ΔE 32.7Black · ΔE 34.3Rebecca purple · ΔE 38.7Purple · ΔE 41.4Dim grey · ΔE 42
Nearest named CSS colourDark slateblue (#483D8B)ΔE 28.93, a distinctly different colour
Hue familymagenta
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1B4018
Analogous#291840, #40182F
Triadic#403D18, #18403D
Split complementary#2F4018, #184029
Tetradic#402918, #1B4018, #182F40

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BC60C4
Lighter +30%#A742AF
Lighter +20%#84348A
Lighter +10%#602665
Darker −10%#1A0A1B
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#460D4B
Less saturated −25%#342335

Channel breakdown

R61
G24
B64
Red61 (23.9%)
Green24 (9.4%)
Blue64 (25.1%)
Hue295.5°
Saturation (HSL)45.45%
Lightness17.25%
Dominant channelBlue
Hex per channelR 3D · G 18 · B 40

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Every value on this page was computed from “3d1840” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.