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Recognised as Colour

#8550A5

  • #8550A5
  • Violet
  • Dark
  • Nearest: Rebecca purple

#8550A5 is a violet with RGB values 133, 80, 165 and HSL 277°, 35%, 48%. It is a dark colour, so white text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Rebecca purple.

Colour values

#8550A5#8550A5
HEX#8550A5
RGBrgb(133, 80, 165)
RGB (0–1)0.5216, 0.3137, 0.6471
RGB percentages52.2%, 31.4%, 64.7%
HSLhsl(277.4, 34.7%, 48%)
HSV / HSBhsv(277.4, 51.5%, 64.7%)
CMYK19.4%, 51.5%, 0%, 35.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,736,933
CSS custom property--colour: #8550A5;

Brightness & contrast

Relative luminance0.1344WCAG 2.x, 0 is black and 1 is white
Perceived brightness110.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.69:1
Contrast with white5.69:1WCAG normal text: AA
Contrast with black3.69:1WCAG normal text: Fail
Greyscale equivalent#616161
Inverted#7AAF5A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3B64A8no red cones; affects about 1% of men; ΔE 30.2 from the original
Deuteranopia#4B68A3no green cones; the most common form, about 1% of men; ΔE 31 from the original
Tritanopia#815E73no blue cones; rare, and affects men and women equally; ΔE 37 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.69:1WCAG large text: AAA
Contrast with black, large text3.69:1WCAG large text: AA

Named colours

Rebecca purple · ΔE 15.2Medium purple · ΔE 17.3Dark slateblue · ΔE 17.9Slate blue · ΔE 20.6Purple · ΔE 25.1Medium orchid · ΔE 25.6
Nearest named CSS colourRebecca purple (#663399)ΔE 15.22, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#70A550
Analogous#5A50A5, #A5509B
Triadic#A58550, #50A585
Split complementary#9BA550, #50A55A
Tetradic#A55A50, #70A550, #509BA5

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E3D6EB
Lighter +30%#CCB4DA
Lighter +20%#B491CA
Lighter +10%#9D6FB9
Darker −10%#693F83
Darker −20%#4E2F60
Darker −30%#321E3E
Darker −40%#160D1C
More saturated +25%#8D31C4
Less saturated −25%#7D6F86

Channel breakdown

R133
G80
B165
Red133 (52.2%)
Green80 (31.4%)
Blue165 (64.7%)
Hue277.41°
Saturation (HSL)34.69%
Lightness48.04%
Dominant channelBlue
Hex per channelR 85 · G 50 · B A5

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Every value on this page was computed from “8550a5” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.