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Recognised as Colour

#8100AA

  • #8100AA
  • Violet
  • Dark
  • Nearest: Dark orchid

#8100AA is a violet with RGB values 129, 0, 170 and HSL 286°, 100%, 33%. It is a dark colour, so white text on it reaches 8.4:1 contrast (AAA for normal text). The nearest named colour is Dark orchid.

Colour values

#8100AA#8100AA
HEX#8100AA
RGBrgb(129, 0, 170)
RGB (0–1)0.5059, 0, 0.6667
RGB percentages50.6%, 0%, 66.7%
HSLhsl(285.5, 100%, 33.3%)
HSV / HSBhsv(285.5, 100%, 66.7%)
CMYK24.1%, 100%, 0%, 33.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,454,314
CSS custom property--colour: #8100AA;

Brightness & contrast

Relative luminance0.07569WCAG 2.x, 0 is black and 1 is white
Perceived brightness90.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.35:1
Contrast with white8.35:1WCAG normal text: AAA
Contrast with black2.51:1WCAG normal text: Fail
Greyscale equivalent#282828
Inverted#7EFF55

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0048AEno red cones; affects about 1% of men; ΔE 43.3 from the original
Deuteranopia#0050A7no green cones; the most common form, about 1% of men; ΔE 51.8 from the original
Tritanopia#7D3A62no blue cones; rare, and affects men and women equally; ΔE 56.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.35:1WCAG large text: AAA
Contrast with black, large text2.51:1WCAG large text: Fail

Named colours

Dark orchid · ΔE 10.8Dark violet · ΔE 17.9Dark magenta · ΔE 18.6Indigo · ΔE 19.7Blue violet · ΔE 20.3Purple · ΔE 22
Nearest named CSS colourDark orchid (#9932CC)ΔE 10.84, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#29AA00
Analogous#2C00AA, #AA007E
Triadic#AA8100, #00AA81
Split complementary#7EAA00, #00AA2C
Tetradic#AA2C00, #29AA00, #007EAA

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DE77FF
Lighter +30%#D244FF
Lighter +20%#C611FF
Lighter +10%#A800DD
Darker −10%#5A0077
Darker −20%#340044
Darker −30%#0D0011
Darker −40%#000000
More saturated +25%#8100AA
Less saturated −25%#761595

Channel breakdown

R129
G0
B170
Red129 (50.6%)
Green0 (0%)
Blue170 (66.7%)
Hue285.53°
Saturation (HSL)100%
Lightness33.33%
Dominant channelBlue
Hex per channelR 81 · G 00 · B AA

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Every value on this page was computed from “8100aa” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.