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Recognised as Colour

#640D39

  • #640D39
  • Magenta
  • Dark
  • Nearest: Brown

#640D39 is a magenta with RGB values 100, 13, 57 and HSL 330°, 77%, 22%. It is a dark colour, so white text on it reaches 12.7:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#640D39#640D39
HEX#640D39
RGBrgb(100, 13, 57)
RGB (0–1)0.3922, 0.051, 0.2235
RGB percentages39.2%, 5.1%, 22.4%
HSLhsl(329.7, 77%, 22.2%)
HSV / HSBhsv(329.7, 87%, 39.2%)
CMYK0%, 87%, 43%, 60.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,556,985
CSS custom property--colour: #640D39;

Brightness & contrast

Relative luminance0.03293WCAG 2.x, 0 is black and 1 is white
Perceived brightness58.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.66:1
Contrast with white12.66:1WCAG normal text: AAA
Contrast with black1.66:1WCAG normal text: Fail
Greyscale equivalent#232323
Inverted#9BF2C6

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#21293Ano red cones; affects about 1% of men; ΔE 39.8 from the original
Deuteranopia#393937no green cones; the most common form, about 1% of men; ΔE 41.1 from the original
Tritanopia#6D0022no blue cones; rare, and affects men and women equally; ΔE 17.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text12.66:1WCAG large text: AAA
Contrast with black, large text1.66:1WCAG large text: Fail

Named colours

Brown · ΔE 38.8Purple · ΔE 38.9Pale violetred · ΔE 39.9Medium violet red · ΔE 40.4Indian red · ΔE 41.3Maroon · ΔE 42.4
Nearest named CSS colourBrown (#A52A2A)ΔE 38.79, a distinctly different colour
Hue familymagenta
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#0D6438
Analogous#630D64, #640D0E
Triadic#39640D, #0D3964
Split complementary#0E640D, #0D6463
Tetradic#64630D, #0D6438, #0D0E64

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E9549F
Lighter +30%#E32786
Lighter +20%#BE196C
Lighter +10%#911353
Darker −10%#37071F
Darker −20%#0A0106
Darker −30%#000000
Darker −40%#000000
More saturated +25%#710039
Less saturated −25%#561B39

Channel breakdown

R100
G13
B57
Red100 (39.2%)
Green13 (5.1%)
Blue57 (22.4%)
Hue329.66°
Saturation (HSL)76.99%
Lightness22.16%
Dominant channelRed
Hex per channelR 64 · G 0D · B 39

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Every value on this page was computed from “640d39” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.