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Recognised as Colour

#8663C9

  • #8663C9
  • Violet
  • Dark
  • Nearest: Medium purple

#8663C9 is a violet with RGB values 134, 99, 201 and HSL 261°, 49%, 59%. It is a dark colour, so black text on it reaches 4.6:1 contrast (AA for normal text). The nearest named colour is Medium purple.

Colour values

#8663C9#8663C9
HEX#8663C9
RGBrgb(134, 99, 201)
RGB (0–1)0.5255, 0.3882, 0.7882
RGB percentages52.5%, 38.8%, 78.8%
HSLhsl(260.6, 48.6%, 58.8%)
HSV / HSBhsv(260.6, 50.7%, 78.8%)
CMYK33.3%, 50.7%, 0%, 21.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,807,369
CSS custom property--colour: #8663C9;

Brightness & contrast

Relative luminance0.18209WCAG 2.x, 0 is black and 1 is white
Perceived brightness125.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.64:1
Contrast with white4.52:1WCAG normal text: AA
Contrast with black4.64:1WCAG normal text: AA
Greyscale equivalent#727272
Inverted#799C36

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3E77CDno red cones; affects about 1% of men; ΔE 26.5 from the original
Deuteranopia#4675C7no green cones; the most common form, about 1% of men; ΔE 26 from the original
Tritanopia#77778Dno blue cones; rare, and affects men and women equally; ΔE 48.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.52:1WCAG large text: AAA
Contrast with black, large text4.64:1WCAG large text: AAA

Named colours

Medium purple · ΔE 5.6Slate blue · ΔE 10.5Medium slateblue · ΔE 18Rebecca purple · ΔE 18.1Royal blue · ΔE 19.8Dark slateblue · ΔE 22.4
Nearest named CSS colourMedium purple (#9370DB)ΔE 5.57, clearly different but related
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A6C963
Analogous#6373C9, #B963C9
Triadic#C98663, #63C986
Split complementary#C9B963, #73C963
Tetradic#C96373, #A6C963, #63C9B9

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FCFBFD
Lighter +30%#DED5F0
Lighter +20%#C1AFE3
Lighter +10%#A389D6
Darker −10%#6A40B9
Darker −20%#543393
Darker −30%#3E266D
Darker −40%#291947
More saturated +25%#7E49E3
Less saturated −25%#8E7DAF

Channel breakdown

R134
G99
B201
Red134 (52.5%)
Green99 (38.8%)
Blue201 (78.8%)
Hue260.59°
Saturation (HSL)48.57%
Lightness58.82%
Dominant channelBlue
Hex per channelR 86 · G 63 · B C9

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Every value on this page was computed from “8663c9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.