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Recognised as Colour

#AC91DA

  • #AC91DA
  • Violet
  • Dark
  • Nearest: Plum

#AC91DA is a violet with RGB values 172, 145, 218 and HSL 262°, 50%, 71%. It is a dark colour, so black text on it reaches 7.8:1 contrast (AAA for normal text). The nearest named colour is Plum.

Colour values

#AC91DA#AC91DA
HEX#AC91DA
RGBrgb(172, 145, 218)
RGB (0–1)0.6745, 0.5686, 0.8549
RGB percentages67.5%, 56.9%, 85.5%
HSLhsl(262.2, 49.7%, 71.2%)
HSV / HSBhsv(262.2, 33.5%, 85.5%)
CMYK21.1%, 33.5%, 0%, 14.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,309,530
CSS custom property--colour: #AC91DA;

Brightness & contrast

Relative luminance0.34083WCAG 2.x, 0 is black and 1 is white
Perceived brightness163.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.82:1
Contrast with white2.69:1WCAG normal text: Fail
Contrast with black7.82:1WCAG normal text: AAA
Greyscale equivalent#9C9C9C
Inverted#536E25

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#809DDDno red cones; affects about 1% of men; ΔE 18.7 from the original
Deuteranopia#859DD8no green cones; the most common form, about 1% of men; ΔE 18.6 from the original
Tritanopia#A49CACno blue cones; rare, and affects men and women equally; ΔE 32.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.69:1WCAG large text: Fail
Contrast with black, large text7.82:1WCAG large text: AAA

Named colours

Plum · ΔE 16.2Cornflower blue · ΔE 22.3Medium purple · ΔE 22.8Orchid · ΔE 30.6Thistle · ΔE 30.9Steel blue · ΔE 31.5
Nearest named CSS colourPlum (#DDA0DD)ΔE 16.24, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BFDA91
Analogous#919BDA, #D091DA
Triadic#DAAC91, #91DAAC
Split complementary#DAD191, #9BDA91
Tetradic#DA919B, #BFDA91, #91DAD0

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#E6DDF4
Lighter +10%#C9B7E7
Darker −10%#8F6BCD
Darker −20%#7245C0
Darker −30%#5B359D
Darker −40%#452877
More saturated +25%#A77FEC
Less saturated −25%#B1A3C8

Channel breakdown

R172
G145
B218
Red172 (67.5%)
Green145 (56.9%)
Blue218 (85.5%)
Hue262.19°
Saturation (HSL)49.66%
Lightness71.18%
Dominant channelBlue
Hex per channelR AC · G 91 · B DA

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Every value on this page was computed from “ac91da” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.