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Recognised as Colour

#8100A7

  • #8100A7
  • Violet
  • Dark
  • Nearest: Dark orchid

#8100A7 is a violet with RGB values 129, 0, 167 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

#8100A7#8100A7
HEX#8100A7
RGBrgb(129, 0, 167)
RGB (0–1)0.5059, 0, 0.6549
RGB percentages50.6%, 0%, 65.5%
HSLhsl(286.3, 100%, 32.7%)
HSV / HSBhsv(286.3, 100%, 65.5%)
CMYK22.8%, 100%, 0%, 34.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,454,311
CSS custom property--colour: #8100A7;

Brightness & contrast

Relative luminance0.07457WCAG 2.x, 0 is black and 1 is white
Perceived brightness90.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.43:1
Contrast with white8.43:1WCAG normal text: AAA
Contrast with black2.49:1WCAG normal text: Fail
Greyscale equivalent#272727
Inverted#7EFF58

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0047ABno red cones; affects about 1% of men; ΔE 43.4 from the original
Deuteranopia#0050A4no green cones; the most common form, about 1% of men; ΔE 52.5 from the original
Tritanopia#7D3861no blue cones; rare, and affects men and women equally; ΔE 54.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.43:1WCAG large text: AAA
Contrast with black, large text2.49:1WCAG large text: Fail

Named colours

Dark orchid · ΔE 11.5Dark magenta · ΔE 17.1Indigo · ΔE 18.9Dark violet · ΔE 19.4Purple · ΔE 20.5Blue violet · ΔE 21.7
Nearest named CSS colourDark orchid (#9932CC)ΔE 11.5, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#26A700
Analogous#2D00A7, #A7007A
Triadic#A78100, #00A781
Split complementary#79A700, #00A72E
Tetradic#A72D00, #26A700, #0079A7

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DF74FF
Lighter +30%#D441FF
Lighter +20%#C80EFF
Lighter +10%#A800DA
Darker −10%#5A0074
Darker −20%#320041
Darker −30%#0B000E
Darker −40%#000000
More saturated +25%#8100A7
Less saturated −25%#761592

Channel breakdown

R129
G0
B167
Red129 (50.6%)
Green0 (0%)
Blue167 (65.5%)
Hue286.35°
Saturation (HSL)100%
Lightness32.75%
Dominant channelBlue
Hex per channelR 81 · G 00 · B A7

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Every value on this page was computed from “8100a7” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.