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Colour

#55406A

  • #55406A
  • Violet
  • Dark
  • Nearest: Dark slateblue

#55406A is a violet with RGB values 85, 64, 106 and HSL 270°, 25%, 33%. It is a dark colour, so white text on it reaches 9:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#55406A#55406A
HEX#55406A
RGBrgb(85, 64, 106)
RGB (0–1)0.3333, 0.251, 0.4157
RGB percentages33.3%, 25.1%, 41.6%
HSLhsl(270, 24.7%, 33.3%)
HSV / HSBhsv(270, 39.6%, 41.6%)
CMYK19.8%, 39.6%, 0%, 58.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,587,050
CSS custom property--colour: #55406A;

Brightness & contrast

Relative luminance0.06639WCAG 2.x, 0 is black and 1 is white
Perceived brightness76.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.02:1
Contrast with white9.02:1WCAG normal text: AAA
Contrast with black2.33:1WCAG normal text: Fail
Greyscale equivalent#474747
Inverted#AABF95

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#37486Cno red cones; affects about 1% of men; ΔE 14.3 from the original
Deuteranopia#3C4969no green cones; the most common form, about 1% of men; ΔE 14.3 from the original
Tritanopia#524650no blue cones; rare, and affects men and women equally; ΔE 20.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.02:1WCAG large text: AAA
Contrast with black, large text2.33:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 22.4Dim grey · ΔE 31Slate grey · ΔE 31.7Steel blue · ΔE 33Light slate grey · ΔE 33.8Dark slate grey · ΔE 34.7
Nearest named CSS colourDark slateblue (#483D8B)ΔE 22.36, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#556A40
Analogous#40406A, #6A406A
Triadic#6A5540, #406A55
Split complementary#6A6A40, #406A40
Tetradic#6A4040, #556A40, #406A6A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BBAACC
Lighter +30%#A28AB9
Lighter +20%#886BA5
Lighter +10%#6F538A
Darker −10%#3C2D4A
Darker −20%#221A2A
Darker −30%#09060B
Darker −40%#000000
More saturated +25%#552B7F
Less saturated −25%#555555

Channel breakdown

R85
G64
B106
Red85 (33.3%)
Green64 (25.1%)
Blue106 (41.6%)
Hue270°
Saturation (HSL)24.71%
Lightness33.33%
Dominant channelBlue
Hex per channelR 55 · G 40 · B 6A

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Every value on this page was computed from “55406a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.