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Recognised as Colour

#8100B9

  • #8100B9
  • Violet
  • Dark
  • Nearest: Dark orchid

#8100B9 is a violet with RGB values 129, 0, 185 and HSL 282°, 100%, 36%. It is a dark colour, so white text on it reaches 8:1 contrast (AAA for normal text). The nearest named colour is Dark orchid.

Colour values

#8100B9#8100B9
HEX#8100B9
RGBrgb(129, 0, 185)
RGB (0–1)0.5059, 0, 0.7255
RGB percentages50.6%, 0%, 72.5%
HSLhsl(281.8, 100%, 36.3%)
HSV / HSBhsv(281.8, 100%, 72.5%)
CMYK30.3%, 100%, 0%, 27.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,454,329
CSS custom property--colour: #8100B9;

Brightness & contrast

Relative luminance0.0817WCAG 2.x, 0 is black and 1 is white
Perceived brightness94.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.97:1
Contrast with white7.97:1WCAG normal text: AAA
Contrast with black2.63:1WCAG normal text: Fail
Greyscale equivalent#292929
Inverted#7EFF46

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004DBDno red cones; affects about 1% of men; ΔE 43.4 from the original
Deuteranopia#0052B6no green cones; the most common form, about 1% of men; ΔE 49.9 from the original
Tritanopia#78426Bno blue cones; rare, and affects men and women equally; ΔE 63.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.97:1WCAG large text: AAA
Contrast with black, large text2.63:1WCAG large text: Fail

Named colours

Dark orchid · ΔE 10.6Dark violet · ΔE 11Blue violet · ΔE 13.5Indigo · ΔE 24.7Dark magenta · ΔE 26Medium orchid · ΔE 27.3
Nearest named CSS colourDark orchid (#9932CC)ΔE 10.58, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#38B900
Analogous#2400B9, #B90095
Triadic#B98100, #00B981
Split complementary#95B900, #00B924
Tetradic#B92400, #38B900, #0095B9

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DA86FF
Lighter +30%#CB53FF
Lighter +20%#BB20FF
Lighter +10%#A500EC
Darker −10%#5D0086
Darker −20%#3A0053
Darker −30%#160020
Darker −40%#000000
More saturated +25%#8100B9
Less saturated −25%#7817A2

Channel breakdown

R129
G0
B185
Red129 (50.6%)
Green0 (0%)
Blue185 (72.5%)
Hue281.84°
Saturation (HSL)100%
Lightness36.27%
Dominant channelBlue
Hex per channelR 81 · G 00 · B B9

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Every value on this page was computed from “8100b9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.