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Recognised as Colour

#A31DFF

  • #A31DFF
  • Violet
  • Dark
  • Nearest: Blue violet

#A31DFF is a violet with RGB values 163, 29, 255 and HSL 276°, 100%, 56%. It is a dark colour, so white text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Blue violet.

Colour values

#A31DFF#A31DFF
HEX#A31DFF
RGBrgb(163, 29, 255)
RGB (0–1)0.6392, 0.1137, 1
RGB percentages63.9%, 11.4%, 100%
HSLhsl(275.6, 100%, 55.7%)
HSV / HSBhsv(275.6, 88.6%, 100%)
CMYK36.1%, 88.6%, 0%, 0%naive device-independent conversion; real print needs an ICC profile
24-bit integer10,690,047
CSS custom property--colour: #A31DFF;

Brightness & contrast

Relative luminance0.15885WCAG 2.x, 0 is black and 1 is white
Perceived brightness125.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.03:1
Contrast with white5.03:1WCAG normal text: AA
Contrast with black4.18:1WCAG normal text: Fail
Greyscale equivalent#4A4A4A
Inverted#5CE200

Colour vision & accessibility

Protanopia#006CFFno red cones; affects about 1% of men; ΔE 51.5 from the original
Deuteranopia#006FFBno green cones; the most common form, about 1% of men; ΔE 55.3 from the original
Tritanopia#906598no blue cones; rare, and affects men and women equally; ΔE 84 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.03:1WCAG large text: AAA
Contrast with black, large text4.18:1WCAG large text: AA

Named colours

Nearest named CSS colourBlue violet (#8A2BE2)ΔE 16.17, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#79FF1D
Analogous#321DFF, #FF1DEA
Triadic#FFA31D, #1DFFA3
Split complementary#EAFF1D, #1DFF32
Tetradic#FF321D, #79FF1D, #1DEAFF

Tints, shades & saturation

Lighter +40%#F6E9FF
Lighter +30%#E1B6FF
Lighter +20%#CD83FF
Lighter +10%#B850FF
Darker −10%#8A00E9
Darker −20%#6C00B6
Darker −30%#4E0083
Darker −40%#2F0050
More saturated +25%#A31DFF
Less saturated −25%#9E39E3

Channel breakdown

R163
G29
B255
Red163 (63.9%)
Green29 (11.4%)
Blue255 (100%)
Hue275.58°
Saturation (HSL)100%
Lightness55.69%
Dominant channelBlue
Hex per channelR A3 · G 1D · B FF

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Every value on this page was computed from “a31dff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.