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Recognised as Colour

#A643AC

  • #A643AC
  • Magenta
  • Dark
  • Nearest: Medium orchid

#A643AC is a magenta with RGB values 166, 67, 172 and HSL 297°, 44%, 47%. It is a dark colour, so white text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Medium orchid.

Colour values

#A643AC#A643AC
HEX#A643AC
RGBrgb(166, 67, 172)
RGB (0–1)0.651, 0.2627, 0.6745
RGB percentages65.1%, 26.3%, 67.5%
HSLhsl(296.6, 43.9%, 46.9%)
HSV / HSBhsv(296.6, 61%, 67.5%)
CMYK3.5%, 61%, 0%, 32.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,896,300
CSS custom property--colour: #A643AC;

Brightness & contrast

Relative luminance0.151WCAG 2.x, 0 is black and 1 is white
Perceived brightness119.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.22:1
Contrast with white5.22:1WCAG normal text: AA
Contrast with black4.02:1WCAG normal text: Fail
Greyscale equivalent#606060
Inverted#59BC53

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3364AFno red cones; affects about 1% of men; ΔE 46.4 from the original
Deuteranopia#5771A9no green cones; the most common form, about 1% of men; ΔE 48.8 from the original
Tritanopia#AA5171no blue cones; rare, and affects men and women equally; ΔE 39.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.22:1WCAG large text: AAA
Contrast with black, large text4.02:1WCAG large text: AA

Named colours

Medium orchid · ΔE 13.4Dark magenta · ΔE 15.3Purple · ΔE 16.5Orchid · ΔE 17.3Rebecca purple · ΔE 20.1Medium purple · ΔE 23.9
Nearest named CSS colourMedium orchid (#BA55D3)ΔE 13.36, a distinctly different colour
Hue familymagenta
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#49AC43
Analogous#7143AC, #AC437E
Triadic#ACA643, #43ACA6
Split complementary#7EAC43, #43AC71
Tetradic#AC7143, #49AC43, #437EAC

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EBCFEC
Lighter +30%#DBAADE
Lighter +20%#CB85D0
Lighter +10%#BC61C1
Darker −10%#833587
Darker −20%#5F2663
Darker −30%#3C183E
Darker −40%#180A19
More saturated +25%#C025CA
Less saturated −25%#8C618E

Channel breakdown

R166
G67
B172
Red166 (65.1%)
Green67 (26.3%)
Blue172 (67.5%)
Hue296.57°
Saturation (HSL)43.93%
Lightness46.86%
Dominant channelBlue
Hex per channelR A6 · G 43 · B AC

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Every value on this page was computed from “a643ac” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.