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Recognised as Colour

#A644DC

  • #A644DC
  • Violet
  • Dark
  • Nearest: Dark orchid

#A644DC is a violet with RGB values 166, 68, 220 and HSL 279°, 68%, 56%. It is a dark colour, so white text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Dark orchid.

Colour values

#A644DC#A644DC
HEX#A644DC
RGBrgb(166, 68, 220)
RGB (0–1)0.651, 0.2667, 0.8627
RGB percentages65.1%, 26.7%, 86.3%
HSLhsl(278.7, 68.5%, 56.5%)
HSV / HSBhsv(278.7, 69.1%, 86.3%)
CMYK24.5%, 69.1%, 0%, 13.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,896,604
CSS custom property--colour: #A644DC;

Brightness & contrast

Relative luminance0.17409WCAG 2.x, 0 is black and 1 is white
Perceived brightness128.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.69:1
Contrast with white4.69:1WCAG normal text: AA
Contrast with black4.48:1WCAG normal text: Fail
Greyscale equivalent#646464
Inverted#59BB23

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#006FE0no red cones; affects about 1% of men; ΔE 46.7 from the original
Deuteranopia#2D76D9no green cones; the most common form, about 1% of men; ΔE 51.3 from the original
Tritanopia#9F658Bno blue cones; rare, and affects men and women equally; ΔE 60.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.69:1WCAG large text: AAA
Contrast with black, large text4.48:1WCAG large text: AA

Named colours

Dark orchid · ΔE 5.5Medium orchid · ΔE 14.8Blue violet · ΔE 16.8Dark violet · ΔE 18.3Medium slateblue · ΔE 23.6Dark magenta · ΔE 27.1
Nearest named CSS colourDark orchid (#9932CC)ΔE 5.55, clearly different but related
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7ADC44
Analogous#5A44DC, #DC44C6
Triadic#DCA644, #44DCA6
Split complementary#C6DC44, #44DC5A
Tetradic#DC5A44, #7ADC44, #44C6DC

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F8F0FC
Lighter +30%#E3C5F4
Lighter +20%#CF9AEC
Lighter +10%#BA6FE4
Darker −10%#8E25C8
Darker −20%#6F1D9D
Darker −30%#511572
Darker −40%#320D47
More saturated +25%#AE28F8
Less saturated −25%#9E60C0

Channel breakdown

R166
G68
B220
Red166 (65.1%)
Green68 (26.7%)
Blue220 (86.3%)
Hue278.68°
Saturation (HSL)68.47%
Lightness56.47%
Dominant channelBlue
Hex per channelR A6 · G 44 · B DC

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Every value on this page was computed from “a644dc” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.