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Recognised as Colour

#640B6A

  • #640B6A
  • Magenta
  • Dark
  • Nearest: Purple

#640B6A is a magenta with RGB values 100, 11, 106 and HSL 296°, 81%, 23%. It is a dark colour, so white text on it reaches 11.7:1 contrast (AAA for normal text). The nearest named colour is Purple.

Colour values

#640B6A#640B6A
HEX#640B6A
RGBrgb(100, 11, 106)
RGB (0–1)0.3922, 0.0431, 0.4157
RGB percentages39.2%, 4.3%, 41.6%
HSLhsl(296.2, 81.2%, 22.9%)
HSV / HSBhsv(296.2, 89.6%, 41.6%)
CMYK5.7%, 89.6%, 0%, 58.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,556,522
CSS custom property--colour: #640B6A;

Brightness & contrast

Relative luminance0.03989WCAG 2.x, 0 is black and 1 is white
Perceived brightness65.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.68:1
Contrast with white11.68:1WCAG normal text: AAA
Contrast with black1.8:1WCAG normal text: Fail
Greyscale equivalent#252525
Inverted#9BF495

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00326Cno red cones; affects about 1% of men; ΔE 38.2 from the original
Deuteranopia#233C68no green cones; the most common form, about 1% of men; ΔE 42.4 from the original
Tritanopia#66203Dno blue cones; rare, and affects men and women equally; ΔE 34 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.68:1WCAG large text: AAA
Contrast with black, large text1.8:1WCAG large text: Fail

Named colours

Purple · ΔE 13.1Rebecca purple · ΔE 18Dark magenta · ΔE 18.1Indigo · ΔE 21.3Midnight blue · ΔE 24.8Dark slateblue · ΔE 25
Nearest named CSS colourPurple (#800080)ΔE 13.09, a distinctly different colour
Hue familymagenta
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#116A0B
Analogous#340B6A, #6A0B41
Triadic#6A640B, #0B6A64
Split complementary#416A0B, #0B6A35
Tetradic#6A350B, #116A0B, #0B406A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E454ED
Lighter +30%#DC26E8
Lighter +20%#BB15C6
Lighter +10%#901098
Darker −10%#38063C
Darker −20%#0D010E
Darker −30%#000000
Darker −40%#000000
More saturated +25%#6E0075
Less saturated −25%#571A5B

Channel breakdown

R100
G11
B106
Red100 (39.2%)
Green11 (4.3%)
Blue106 (41.6%)
Hue296.21°
Saturation (HSL)81.2%
Lightness22.94%
Dominant channelBlue
Hex per channelR 64 · G 0B · B 6A

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Every value on this page was computed from “640b6a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.