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Recognised as Colour

#A166B5

  • #A166B5
  • Violet
  • Dark
  • Nearest: Medium purple

#A166B5 is a violet with RGB values 161, 102, 181 and HSL 285°, 35%, 55%. It is a dark colour, so black text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Medium purple.

Colour values

#A166B5#A166B5
HEX#A166B5
RGBrgb(161, 102, 181)
RGB (0–1)0.6314, 0.4, 0.7098
RGB percentages63.1%, 40%, 71%
HSLhsl(284.8, 34.8%, 55.5%)
HSV / HSBhsv(284.8, 43.6%, 71%)
CMYK11%, 43.6%, 0%, 29%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,577,589
CSS custom property--colour: #A166B5;

Brightness & contrast

Relative luminance0.20416WCAG 2.x, 0 is black and 1 is white
Perceived brightness132.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.08:1
Contrast with white4.13:1WCAG normal text: Fail
Contrast with black5.08:1WCAG normal text: AA
Greyscale equivalent#787878
Inverted#5E994A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5979B8no red cones; affects about 1% of men; ΔE 31.1 from the original
Deuteranopia#697FB3no green cones; the most common form, about 1% of men; ΔE 31.9 from the original
Tritanopia#A17185no blue cones; rare, and affects men and women equally; ΔE 33 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.13:1WCAG large text: AA
Contrast with black, large text5.08:1WCAG large text: AAA

Named colours

Medium purple · ΔE 17.8Orchid · ΔE 20.8Plum · ΔE 24.1Rebecca purple · ΔE 24.9Violet · ΔE 26.1Dark slateblue · ΔE 26.1
Nearest named CSS colourMedium purple (#9370DB)ΔE 17.8, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7AB566
Analogous#7966B5, #B566A2
Triadic#B5A166, #66B5A1
Split complementary#A2B566, #66B579
Tetradic#B57966, #7AB566, #66A2B5

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F5EFF8
Lighter +30%#E0CDE7
Lighter +20%#CBABD6
Lighter +10%#B688C6
Darker −10%#884C9C
Darker −20%#6A3B7A
Darker −30%#4C2A58
Darker −40%#2E1A35
More saturated +25%#AF4AD1
Less saturated −25%#938299

Channel breakdown

R161
G102
B181
Red161 (63.1%)
Green102 (40%)
Blue181 (71%)
Hue284.81°
Saturation (HSL)34.8%
Lightness55.49%
Dominant channelBlue
Hex per channelR A1 · G 66 · B B5

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Every value on this page was computed from “a166b5” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.