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Colour

#8151B2

  • #8151B2
  • Violet
  • Dark
  • Nearest: Rebecca purple

#8151B2 is a violet with RGB values 129, 81, 178 and HSL 270°, 39%, 51%. It is a dark colour, so white text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Rebecca purple.

Colour values

#8151B2#8151B2
HEX#8151B2
RGBrgb(129, 81, 178)
RGB (0–1)0.5059, 0.3176, 0.698
RGB percentages50.6%, 31.8%, 69.8%
HSLhsl(269.7, 38.6%, 50.8%)
HSV / HSBhsv(269.7, 54.5%, 69.8%)
CMYK27.5%, 54.5%, 0%, 30.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,475,058
CSS custom property--colour: #8151B2;

Brightness & contrast

Relative luminance0.13766WCAG 2.x, 0 is black and 1 is white
Perceived brightness111.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.6:1
Contrast with white5.6:1WCAG normal text: AA
Contrast with black3.75:1WCAG normal text: Fail
Greyscale equivalent#626262
Inverted#7EAE4D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2F66B5no red cones; affects about 1% of men; ΔE 29.9 from the original
Deuteranopia#3F68B0no green cones; the most common form, about 1% of men; ΔE 30.4 from the original
Tritanopia#79637Ano blue cones; rare, and affects men and women equally; ΔE 43.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.6:1WCAG large text: AAA
Contrast with black, large text3.75:1WCAG large text: AA

Named colours

Rebecca purple · ΔE 11.9Medium purple · ΔE 12.8Slate blue · ΔE 14Dark slateblue · ΔE 18.8Medium orchid · ΔE 22.2Medium slateblue · ΔE 22.7
Nearest named CSS colourRebecca purple (#663399)ΔE 11.89, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#82B251
Analogous#5152B2, #B251B2
Triadic#B28151, #51B281
Split complementary#B2B251, #51B251
Tetradic#B25152, #82B251, #51B2B2

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E7DEF1
Lighter +30%#CEBBE1
Lighter +20%#B498D1
Lighter +10%#9B74C2
Darker −10%#684090
Darker −20%#4E306D
Darker −30%#352149
Darker −40%#1B1126
More saturated +25%#8132D1
Less saturated −25%#817093

Channel breakdown

R129
G81
B178
Red129 (50.6%)
Green81 (31.8%)
Blue178 (69.8%)
Hue269.69°
Saturation (HSL)38.65%
Lightness50.78%
Dominant channelBlue
Hex per channelR 81 · G 51 · B B2

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Every value on this page was computed from “8151b2” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.