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Recognised as Colour

#511B76

  • #511B76
  • Violet
  • Dark
  • Nearest: Rebecca purple

#511B76 is a violet with RGB values 81, 27, 118 and HSL 276°, 63%, 28%. It is a dark colour, so white text on it reaches 11.9:1 contrast (AAA for normal text). The nearest named colour is Rebecca purple.

Colour values

#511B76#511B76
HEX#511B76
RGBrgb(81, 27, 118)
RGB (0–1)0.3176, 0.1059, 0.4627
RGB percentages31.8%, 10.6%, 46.3%
HSLhsl(275.6, 62.8%, 28.4%)
HSV / HSBhsv(275.6, 77.1%, 46.3%)
CMYK31.4%, 77.1%, 0%, 53.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,315,446
CSS custom property--colour: #511B76;

Brightness & contrast

Relative luminance0.03841WCAG 2.x, 0 is black and 1 is white
Perceived brightness63.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.88:1
Contrast with white11.88:1WCAG normal text: AAA
Contrast with black1.77:1WCAG normal text: Fail
Greyscale equivalent#2D2D2D
Inverted#AEE489

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003579no red cones; affects about 1% of men; ΔE 27.6 from the original
Deuteranopia#003874no green cones; the most common form, about 1% of men; ΔE 32 from the original
Tritanopia#4B3147no blue cones; rare, and affects men and women equally; ΔE 41.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.88:1WCAG large text: AAA
Contrast with black, large text1.77:1WCAG large text: Fail

Named colours

Rebecca purple · ΔE 11.5Midnight blue · ΔE 14.7Indigo · ΔE 16Dark slateblue · ΔE 17.2Purple · ΔE 19.3Dark magenta · ΔE 23.3
Nearest named CSS colourRebecca purple (#663399)ΔE 11.49, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#40761B
Analogous#231B76, #761B6E
Triadic#76511B, #1B7651
Split complementary#6E761B, #1B7623
Tetradic#76231B, #40761B, #1B6E76

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B87CE1
Lighter +30%#A152D8
Lighter +20%#8A2EC9
Lighter +10%#6D24A0
Darker −10%#35124C
Darker −20%#180823
Darker −30%#000000
Darker −40%#000000
More saturated +25%#540988
Less saturated −25%#4E2D64

Channel breakdown

R81
G27
B118
Red81 (31.8%)
Green27 (10.6%)
Blue118 (46.3%)
Hue275.6°
Saturation (HSL)62.76%
Lightness28.43%
Dominant channelBlue
Hex per channelR 51 · G 1B · B 76

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Every value on this page was computed from “511b76” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.