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Recognised as Colour

#A31BBA

  • #A31BBA
  • Magenta
  • Dark
  • Nearest: Dark orchid

#A31BBA is a magenta with RGB values 163, 27, 186 and HSL 291°, 75%, 42%. It is a dark colour, so white text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Dark orchid.

Colour values

#A31BBA#A31BBA
HEX#A31BBA
RGBrgb(163, 27, 186)
RGB (0–1)0.6392, 0.1059, 0.7294
RGB percentages63.9%, 10.6%, 72.9%
HSLhsl(291.3, 74.6%, 41.8%)
HSV / HSBhsv(291.3, 85.5%, 72.9%)
CMYK12.4%, 85.5%, 0%, 27.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,689,466
CSS custom property--colour: #A31BBA;

Brightness & contrast

Relative luminance0.12116WCAG 2.x, 0 is black and 1 is white
Perceived brightness111 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.13:1
Contrast with white6.13:1WCAG normal text: AA
Contrast with black3.42:1WCAG normal text: Fail
Greyscale equivalent#434343
Inverted#5CE445

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0059BEno red cones; affects about 1% of men; ΔE 52.4 from the original
Deuteranopia#3266B7no green cones; the most common form, about 1% of men; ΔE 59.7 from the original
Tritanopia#A4426Fno blue cones; rare, and affects men and women equally; ΔE 53.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.13:1WCAG large text: AAA
Contrast with black, large text3.42:1WCAG large text: AA

Named colours

Dark orchid · ΔE 9.1Medium orchid · ΔE 17.4Dark magenta · ΔE 18.2Dark violet · ΔE 18.8Blue violet · ΔE 22.1Purple · ΔE 22.9
Nearest named CSS colourDark orchid (#9932CC)ΔE 9.14, clearly different but related
Hue familymagenta
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#32BA1B
Analogous#531BBA, #BA1B82
Triadic#BAA31B, #1BBAA3
Split complementary#82BA1B, #1BBA53
Tetradic#BA531B, #32BA1B, #1B82BA

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E9AEF3
Lighter +30%#DD81ED
Lighter +20%#D155E6
Lighter +10%#C528E0
Darker −10%#7C158D
Darker −20%#550E61
Darker −30%#2E0834
Darker −40%#070108
More saturated +25%#B600D5
Less saturated −25%#90369F

Channel breakdown

R163
G27
B186
Red163 (63.9%)
Green27 (10.6%)
Blue186 (72.9%)
Hue291.32°
Saturation (HSL)74.65%
Lightness41.76%
Dominant channelBlue
Hex per channelR A3 · G 1B · B BA

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Every value on this page was computed from “a31bba” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.