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Recognised as Colour

#855CA4

  • #855CA4
  • Violet
  • Dark
  • Nearest: Dark slateblue

#855CA4 is a violet with RGB values 133, 92, 164 and HSL 274°, 28%, 50%. It is a dark colour, so white text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Dark slateblue.

Colour values

#855CA4#855CA4
HEX#855CA4
RGBrgb(133, 92, 164)
RGB (0–1)0.5216, 0.3608, 0.6431
RGB percentages52.2%, 36.1%, 64.3%
HSLhsl(274.2, 28.3%, 50.2%)
HSV / HSBhsv(274.2, 43.9%, 64.3%)
CMYK18.9%, 43.9%, 0%, 35.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,740,004
CSS custom property--colour: #855CA4;

Brightness & contrast

Relative luminance0.15321WCAG 2.x, 0 is black and 1 is white
Perceived brightness115.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.17:1
Contrast with white5.17:1WCAG normal text: AA
Contrast with black4.06:1WCAG normal text: Fail
Greyscale equivalent#6A6A6A
Inverted#7AA35B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4C6BA7no red cones; affects about 1% of men; ΔE 24.3 from the original
Deuteranopia#566EA2no green cones; the most common form, about 1% of men; ΔE 25.2 from the original
Tritanopia#816778no blue cones; rare, and affects men and women equally; ΔE 32.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.17:1WCAG large text: AAA
Contrast with black, large text4.06:1WCAG large text: AA

Named colours

Dark slateblue · ΔE 18.6Medium purple · ΔE 20.5Rebecca purple · ΔE 23.1Slate blue · ΔE 25.8Plum · ΔE 29.3Orchid · ΔE 29.7
Nearest named CSS colourDark slateblue (#483D8B)ΔE 18.6, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7BA45C
Analogous#615CA4, #A45C9F
Triadic#A4855C, #5CA485
Split complementary#9FA45C, #5CA461
Tetradic#A4615C, #7BA45C, #5C9FA4

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E7DFED
Lighter +30%#CEBEDB
Lighter +20%#B69DC9
Lighter +10%#9D7DB6
Darker −10%#6B4984
Darker −20%#503763
Darker −30%#362542
Darker −40%#1B1321
More saturated +25%#893CC4
Less saturated −25%#817C84

Channel breakdown

R133
G92
B164
Red133 (52.2%)
Green92 (36.1%)
Blue164 (64.3%)
Hue274.17°
Saturation (HSL)28.35%
Lightness50.2%
Dominant channelBlue
Hex per channelR 85 · G 5C · B A4

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Every value on this page was computed from “855ca4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.