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Colour

#8166FF

  • #8166FF
  • Blue
  • Dark
  • Nearest: Medium slateblue

#8166FF is a blue with RGB values 129, 102, 255 and HSL 251°, 100%, 70%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#8166FF#8166FF
HEX#8166FF
RGBrgb(129, 102, 255)
RGB (0–1)0.5059, 0.4, 1
RGB percentages50.6%, 40%, 100%
HSLhsl(250.6, 100%, 70%)
HSV / HSBhsv(250.6, 60%, 100%)
CMYK49.4%, 60%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,480,511
CSS custom property--colour: #8166FF;

Brightness & contrast

Relative luminance0.2139WCAG 2.x, 0 is black and 1 is white
Perceived brightness136 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.28:1
Contrast with white3.98:1WCAG normal text: Fail
Contrast with black5.28:1WCAG normal text: AA
Greyscale equivalent#777777
Inverted#7E9900

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0083FFno red cones; affects about 1% of men; ΔE 31.6 from the original
Deuteranopia#007BFCno green cones; the most common form, about 1% of men; ΔE 27.5 from the original
Tritanopia#538AA9no blue cones; rare, and affects men and women equally; ΔE 76.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.98:1WCAG large text: AA
Contrast with black, large text5.28:1WCAG large text: AAA

Named colours

Medium slateblue · ΔE 10.4Slate blue · ΔE 21Dark orchid · ΔE 23.4Royal blue · ΔE 23.9Blue violet · ΔE 24.4Medium purple · ΔE 25.5
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 10.44, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#E4FF66
Analogous#6697FF, #CE66FF
Triadic#FF8166, #66FF81
Split complementary#FFCE66, #97FF66
Tetradic#FF6697, #E4FF66, #66FFCE

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#D5CCFF
Lighter +10%#AB99FF
Darker −10%#5733FF
Darker −20%#2D00FF
Darker −30%#2400CC
Darker −40%#1B0099
More saturated +25%#8166FF
Less saturated −25%#8D79EC

Channel breakdown

R129
G102
B255
Red129 (50.6%)
Green102 (40%)
Blue255 (100%)
Hue250.59°
Saturation (HSL)100%
Lightness70%
Dominant channelBlue
Hex per channelR 81 · G 66 · B FF

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Every value on this page was computed from “8166ff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.