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Recognised as Colour

#A31DB4

  • #A31DB4
  • Magenta
  • Dark
  • Nearest: Dark orchid

#A31DB4 is a magenta with RGB values 163, 29, 180 and HSL 293°, 72%, 41%. It is a dark colour, so white text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Dark orchid.

Colour values

#A31DB4#A31DB4
HEX#A31DB4
RGBrgb(163, 29, 180)
RGB (0–1)0.6392, 0.1137, 0.7059
RGB percentages63.9%, 11.4%, 70.6%
HSLhsl(293.2, 72.2%, 41%)
HSV / HSBhsv(293.2, 83.9%, 70.6%)
CMYK9.4%, 83.9%, 0%, 29.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,689,972
CSS custom property--colour: #A31DB4;

Brightness & contrast

Relative luminance0.11961WCAG 2.x, 0 is black and 1 is white
Perceived brightness110.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.19:1
Contrast with white6.19:1WCAG normal text: AA
Contrast with black3.39:1WCAG normal text: Fail
Greyscale equivalent#444444
Inverted#5CE24B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0058B8no red cones; affects about 1% of men; ΔE 52.9 from the original
Deuteranopia#3966B1no green cones; the most common form, about 1% of men; ΔE 59.4 from the original
Tritanopia#A53F6Cno blue cones; rare, and affects men and women equally; ΔE 50.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.19:1WCAG large text: AAA
Contrast with black, large text3.39:1WCAG large text: AA

Named colours

Dark orchid · ΔE 11.3Dark magenta · ΔE 15.1Medium orchid · ΔE 15.9Purple · ΔE 19.9Dark violet · ΔE 22.2Blue violet · ΔE 25.2
Nearest named CSS colourDark orchid (#9932CC)ΔE 11.33, a distinctly different colour
Hue familymagenta
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#2EB41D
Analogous#571DB4, #B41D7A
Triadic#B4A31D, #1DB4A3
Split complementary#7AB41D, #1DB457
Tetradic#B4571D, #2EB41D, #1D7AB4

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EAABF2
Lighter +30%#DE80EA
Lighter +20%#D354E3
Lighter +10%#C828DC
Darker −10%#7B1688
Darker −20%#530F5C
Darker −30%#2C0830
Darker −40%#040104
More saturated +25%#B703CE
Less saturated −25%#8F379A

Channel breakdown

R163
G29
B180
Red163 (63.9%)
Green29 (11.4%)
Blue180 (70.6%)
Hue293.25°
Saturation (HSL)72.25%
Lightness40.98%
Dominant channelBlue
Hex per channelR A3 · G 1D · B B4

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Every value on this page was computed from “a31db4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.