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Recognised as Colour

#511B6E

  • #511B6E
  • Violet
  • Dark
  • Nearest: Rebecca purple

#511B6E is a violet with RGB values 81, 27, 110 and HSL 279°, 61%, 27%. It is a dark colour, so white text on it reaches 12.1:1 contrast (AAA for normal text). The nearest named colour is Rebecca purple.

Colour values

#511B6E#511B6E
HEX#511B6E
RGBrgb(81, 27, 110)
RGB (0–1)0.3176, 0.1059, 0.4314
RGB percentages31.8%, 10.6%, 43.1%
HSLhsl(279, 60.6%, 26.9%)
HSV / HSBhsv(279, 75.5%, 43.1%)
CMYK26.4%, 75.5%, 0%, 56.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,315,438
CSS custom property--colour: #511B6E;

Brightness & contrast

Relative luminance0.03659WCAG 2.x, 0 is black and 1 is white
Perceived brightness61.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.13:1
Contrast with white12.13:1WCAG normal text: AAA
Contrast with black1.73:1WCAG normal text: Fail
Greyscale equivalent#2C2C2C
Inverted#AEE491

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003370no red cones; affects about 1% of men; ΔE 28.3 from the original
Deuteranopia#0D376Cno green cones; the most common form, about 1% of men; ΔE 31.9 from the original
Tritanopia#4D2D43no blue cones; rare, and affects men and women equally; ΔE 36.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text12.13:1WCAG large text: AAA
Contrast with black, large text1.73:1WCAG large text: Fail

Named colours

Rebecca purple · ΔE 14.8Midnight blue · ΔE 16.1Dark slateblue · ΔE 16.6Indigo · ΔE 20.3Purple · ΔE 20.7Dark magenta · ΔE 25.2
Nearest named CSS colourRebecca purple (#663399)ΔE 14.82, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#386E1B
Analogous#281B6E, #6E1B62
Triadic#6E511B, #1B6E51
Split complementary#616E1B, #1B6E28
Tetradic#6E281B, #386E1B, #1B626E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BA77DE
Lighter +30%#A54ED4
Lighter +20%#8D2FC0
Lighter +10%#6F2597
Darker −10%#331145
Darker −20%#15071C
Darker −30%#000000
Darker −40%#000000
More saturated +25%#560A7F
Less saturated −25%#4C2C5D

Channel breakdown

R81
G27
B110
Red81 (31.8%)
Green27 (10.6%)
Blue110 (43.1%)
Hue279.04°
Saturation (HSL)60.58%
Lightness26.86%
Dominant channelBlue
Hex per channelR 51 · G 1B · B 6E

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Every value on this page was computed from “511b6e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.