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Recognised as Colour

#581B86

  • #581B86
  • Violet
  • Dark
  • Nearest: Rebecca purple

#581B86 is a violet with RGB values 88, 27, 134 and HSL 274°, 66%, 32%. It is a dark colour, so white text on it reaches 11:1 contrast (AAA for normal text). The nearest named colour is Rebecca purple.

Colour values

#581B86#581B86
HEX#581B86
RGBrgb(88, 27, 134)
RGB (0–1)0.3451, 0.1059, 0.5255
RGB percentages34.5%, 10.6%, 52.5%
HSLhsl(274.2, 66.5%, 31.6%)
HSV / HSBhsv(274.2, 79.9%, 52.5%)
CMYK34.3%, 79.9%, 0%, 47.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,774,214
CSS custom property--colour: #581B86;

Brightness & contrast

Relative luminance0.0458WCAG 2.x, 0 is black and 1 is white
Perceived brightness69.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.96:1
Contrast with white10.96:1WCAG normal text: AAA
Contrast with black1.92:1WCAG normal text: Fail
Greyscale equivalent#303030
Inverted#A7E479

Colour vision & accessibility

Protanopia#003B89no red cones; affects about 1% of men; ΔE 30.1 from the original
Deuteranopia#003D84no green cones; the most common form, about 1% of men; ΔE 33.8 from the original
Tritanopia#4F3750no blue cones; rare, and affects men and women equally; ΔE 47.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.96:1WCAG large text: AAA
Contrast with black, large text1.92:1WCAG large text: Fail

Named colours

Nearest named CSS colourRebecca purple (#663399)ΔE 8.29, clearly different but related
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#49861B
Analogous#231B86, #861B7E
Triadic#86581B, #1B8658
Split complementary#7E861B, #1B8623
Tetradic#86231B, #49861B, #1B7E86

Tints, shades & saturation

Lighter +40%#BD86E7
Lighter +30%#A65CDE
Lighter +20%#8F31D6
Lighter +10%#7424B0
Darker −10%#3C125C
Darker −20%#200A31
Darker −30%#040107
Darker −40%#000000
More saturated +25%#5B079A
Less saturated −25%#552F72

Channel breakdown

R88
G27
B134
Red88 (34.5%)
Green27 (10.6%)
Blue134 (52.5%)
Hue274.21°
Saturation (HSL)66.46%
Lightness31.57%
Dominant channelBlue
Hex per channelR 58 · G 1B · B 86

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Every value on this page was computed from “581b86” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.