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Recognised as Colour

#511D88

  • #511D88
  • Violet
  • Dark
  • Nearest: Rebecca purple

#511D88 is a violet with RGB values 81, 29, 136 and HSL 269°, 65%, 32%. It is a dark colour, so white text on it reaches 11.2:1 contrast (AAA for normal text). The nearest named colour is Rebecca purple.

Colour values

#511D88#511D88
HEX#511D88
RGBrgb(81, 29, 136)
RGB (0–1)0.3176, 0.1137, 0.5333
RGB percentages31.8%, 11.4%, 53.3%
HSLhsl(269.2, 64.8%, 32.4%)
HSV / HSBhsv(269.2, 78.7%, 53.3%)
CMYK40.4%, 78.7%, 0%, 46.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,315,976
CSS custom property--colour: #511D88;

Brightness & contrast

Relative luminance0.04406WCAG 2.x, 0 is black and 1 is white
Perceived brightness67.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.16:1
Contrast with white11.16:1WCAG normal text: AAA
Contrast with black1.88:1WCAG normal text: Fail
Greyscale equivalent#303030
Inverted#AEE277

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003B8Bno red cones; affects about 1% of men; ΔE 27.7 from the original
Deuteranopia#003A86no green cones; the most common form, about 1% of men; ΔE 29.2 from the original
Tritanopia#443952no blue cones; rare, and affects men and women equally; ΔE 50 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.16:1WCAG large text: AAA
Contrast with black, large text1.88:1WCAG large text: Fail

Named colours

Rebecca purple · ΔE 8.6Indigo · ΔE 8.8Midnight blue · ΔE 16.1Navy · ΔE 19.4Purple · ΔE 19.8Dark slateblue · ΔE 21.3
Nearest named CSS colourRebecca purple (#663399)ΔE 8.59, clearly different but related
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#54881D
Analogous#1D1F88, #861D88
Triadic#88511D, #1D8851
Split complementary#88861D, #1F881D
Tetradic#881D1F, #54881D, #1D8886

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B78BE6
Lighter +30%#9D61DD
Lighter +20%#8337D4
Lighter +10%#6A26B2
Darker −10%#38145E
Darker −20%#1F0B34
Darker −30%#06020A
Darker −40%#000000
More saturated +25%#50089D
Less saturated −25%#523273

Channel breakdown

R81
G29
B136
Red81 (31.8%)
Green29 (11.4%)
Blue136 (53.3%)
Hue269.16°
Saturation (HSL)64.85%
Lightness32.35%
Dominant channelBlue
Hex per channelR 51 · G 1D · B 88

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Every value on this page was computed from “511d88” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.