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Recognised as Colour

#512B91

  • #512B91
  • Violet
  • Dark
  • Nearest: Rebecca purple

#512B91 is a violet with RGB values 81, 43, 145 and HSL 262°, 54%, 37%. It is a dark colour, so white text on it reaches 10:1 contrast (AAA for normal text). The nearest named colour is Rebecca purple.

Colour values

#512B91#512B91
HEX#512B91
RGBrgb(81, 43, 145)
RGB (0–1)0.3176, 0.1686, 0.5686
RGB percentages31.8%, 16.9%, 56.9%
HSLhsl(262.4, 54.3%, 36.9%)
HSV / HSBhsv(262.4, 70.3%, 56.9%)
CMYK44.1%, 70.3%, 0%, 43.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,319,569
CSS custom property--colour: #512B91;

Brightness & contrast

Relative luminance0.05521WCAG 2.x, 0 is black and 1 is white
Perceived brightness73.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.98:1
Contrast with white9.98:1WCAG normal text: AAA
Contrast with black2.1:1WCAG normal text: Fail
Greyscale equivalent#3A3A3A
Inverted#AED46E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004394no red cones; affects about 1% of men; ΔE 25 from the original
Deuteranopia#00418Fno green cones; the most common form, about 1% of men; ΔE 25.7 from the original
Tritanopia#40445Ano blue cones; rare, and affects men and women equally; ΔE 51.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.98:1WCAG large text: AAA
Contrast with black, large text2.1:1WCAG large text: Fail

Named colours

Rebecca purple · ΔE 6Indigo · ΔE 13.9Midnight blue · ΔE 15.2Dark slateblue · ΔE 16.8Slate blue · ΔE 19.4Navy · ΔE 22.2
Nearest named CSS colourRebecca purple (#663399)ΔE 6.01, clearly different but related
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6B912B
Analogous#2B3891, #842B91
Triadic#91512B, #2B9151
Split complementary#91842B, #38912B
Tetradic#912B38, #6B912B, #2B9184

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BCA4E4
Lighter +30%#9F7DD8
Lighter +20%#8255CD
Lighter +10%#6737B8
Darker −10%#3B1F6A
Darker −20%#251442
Darker −30%#0F081B
Darker −40%#000000
More saturated +25%#4B14A9
Less saturated −25%#57437A

Channel breakdown

R81
G43
B145
Red81 (31.8%)
Green43 (16.9%)
Blue145 (56.9%)
Hue262.35°
Saturation (HSL)54.26%
Lightness36.86%
Dominant channelBlue
Hex per channelR 51 · G 2B · B 91

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Every value on this page was computed from “512b91” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.