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Recognised as Colour

#51165E

  • #51165E
  • Violet
  • Dark
  • Nearest: Dark slateblue

#51165E is a violet with RGB values 81, 22, 94 and HSL 289°, 62%, 23%. It is a dark colour, so white text on it reaches 12.9:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#51165E#51165E
HEX#51165E
RGBrgb(81, 22, 94)
RGB (0–1)0.3176, 0.0863, 0.3686
RGB percentages31.8%, 8.6%, 36.9%
HSLhsl(289.2, 62.1%, 22.7%)
HSV / HSBhsv(289.2, 76.6%, 36.9%)
CMYK13.8%, 76.6%, 0%, 63.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,314,142
CSS custom property--colour: #51165E;

Brightness & contrast

Relative luminance0.03131WCAG 2.x, 0 is black and 1 is white
Perceived brightness57 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.91:1
Contrast with white12.91:1WCAG normal text: AAA
Contrast with black1.63:1WCAG normal text: Fail
Greyscale equivalent#282828
Inverted#AEE9A1

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002E60no red cones; affects about 1% of men; ΔE 30.6 from the original
Deuteranopia#1C345Cno green cones; the most common form, about 1% of men; ΔE 32.9 from the original
Tritanopia#512438no blue cones; rare, and affects men and women equally; ΔE 30.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text12.91:1WCAG large text: AAA
Contrast with black, large text1.63:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 20Midnight blue · ΔE 21.3Rebecca purple · ΔE 21.8Purple · ΔE 23.7Indigo · ΔE 27.1Dark magenta · ΔE 28.7
Nearest named CSS colourDark slateblue (#483D8B)ΔE 20.04, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#235E16
Analogous#2D165E, #5E1647
Triadic#5E5116, #165E51
Split complementary#475E16, #165E2D
Tetradic#5E2D16, #235E16, #16475E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C665DB
Lighter +30%#B63CD1
Lighter +20%#9829B1
Lighter +10%#752087
Darker −10%#2D0C35
Darker −20%#0A030B
Darker −30%#000000
Darker −40%#000000
More saturated +25%#5A086C
Less saturated −25%#48254F

Channel breakdown

R81
G22
B94
Red81 (31.8%)
Green22 (8.6%)
Blue94 (36.9%)
Hue289.17°
Saturation (HSL)62.07%
Lightness22.75%
Dominant channelBlue
Hex per channelR 51 · G 16 · B 5E

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Every value on this page was computed from “51165e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.