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Recognised as Colour

#3C183D

  • #3C183D
  • Magenta
  • Dark
  • Nearest: Dark slateblue

#3C183D is a magenta with RGB values 60, 24, 61 and HSL 298°, 44%, 17%. It is a dark colour, so white text on it reaches 15.1:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#3C183D#3C183D
HEX#3C183D
RGBrgb(60, 24, 61)
RGB (0–1)0.2353, 0.0941, 0.2392
RGB percentages23.5%, 9.4%, 23.9%
HSLhsl(298.4, 43.5%, 16.7%)
HSV / HSBhsv(298.4, 60.7%, 23.9%)
CMYK1.6%, 60.7%, 0%, 76.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,938,365
CSS custom property--colour: #3C183D;

Brightness & contrast

Relative luminance0.01951WCAG 2.x, 0 is black and 1 is white
Perceived brightness42.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.11:1
Contrast with white15.11:1WCAG normal text: AAA
Contrast with black1.39:1WCAG normal text: Fail
Greyscale equivalent#222222
Inverted#C3E7C2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#14233Eno red cones; affects about 1% of men; ΔE 20.6 from the original
Deuteranopia#1F283Cno green cones; the most common form, about 1% of men; ΔE 21.6 from the original
Tritanopia#3E1C27no blue cones; rare, and affects men and women equally; ΔE 17.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.11:1WCAG large text: AAA
Contrast with black, large text1.39:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 30.5Black · ΔE 32.6Midnight blue · ΔE 34.5Rebecca purple · ΔE 40.5Dark slate grey · ΔE 41Dim grey · ΔE 41
Nearest named CSS colourDark slateblue (#483D8B)ΔE 30.49, a distinctly different colour
Hue familymagenta
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#193D18
Analogous#29183D, #3D182C
Triadic#3D3C18, #183D3C
Split complementary#2C3D18, #183D2A
Tetradic#3D2A18, #193D18, #182C3D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BE60C1
Lighter +30%#A843AB
Lighter +20%#843586
Lighter +10%#602662
Darker −10%#180A18
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#460D48
Less saturated −25%#322332

Channel breakdown

R60
G24
B61
Red60 (23.5%)
Green24 (9.4%)
Blue61 (23.9%)
Hue298.38°
Saturation (HSL)43.53%
Lightness16.67%
Dominant channelBlue
Hex per channelR 3C · G 18 · B 3D

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Every value on this page was computed from “3c183d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.