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Colour

#553F85

  • #553F85
  • Violet
  • Dark
  • Nearest: Dark slateblue

#553F85 is a violet with RGB values 85, 63, 133 and HSL 259°, 36%, 38%. It is a dark colour, so white text on it reaches 8.6:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#553F85#553F85
HEX#553F85
RGBrgb(85, 63, 133)
RGB (0–1)0.3333, 0.2471, 0.5216
RGB percentages33.3%, 24.7%, 52.2%
HSLhsl(258.9, 35.7%, 38.4%)
HSV / HSBhsv(258.9, 52.6%, 52.2%)
CMYK36.1%, 52.6%, 0%, 47.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,586,821
CSS custom property--colour: #553F85;

Brightness & contrast

Relative luminance0.0718WCAG 2.x, 0 is black and 1 is white
Perceived brightness80.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.62:1
Contrast with white8.62:1WCAG normal text: AAA
Contrast with black2.44:1WCAG normal text: Fail
Greyscale equivalent#494949
Inverted#AAC07A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#254C87no red cones; affects about 1% of men; ΔE 18.9 from the original
Deuteranopia#2A4B83no green cones; the most common form, about 1% of men; ΔE 18.9 from the original
Tritanopia#4A4D5Cno blue cones; rare, and affects men and women equally; ΔE 36 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.62:1WCAG large text: AAA
Contrast with black, large text2.44:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 6.2Rebecca purple · ΔE 19.9Midnight blue · ΔE 21.9Slate blue · ΔE 27.2Medium purple · ΔE 28.7Purple · ΔE 32.7
Nearest named CSS colourDark slateblue (#483D8B)ΔE 6.16, clearly different but related
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6F853F
Analogous#3F4C85, #783F85
Triadic#85553F, #3F8555
Split complementary#85783F, #4C853F
Tetradic#853F4C, #6F853F, #3F8578

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C1B4DC
Lighter +30%#A492CB
Lighter +20%#876FBB
Lighter +10%#6B4FA8
Darker −10%#3F2F62
Darker −20%#291E40
Darker −30%#130E1D
Darker −40%#000000
More saturated +25%#4C279E
Less saturated −25%#5E586D

Channel breakdown

R85
G63
B133
Red85 (33.3%)
Green63 (24.7%)
Blue133 (52.2%)
Hue258.86°
Saturation (HSL)35.71%
Lightness38.43%
Dominant channelBlue
Hex per channelR 55 · G 3F · B 85

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Every value on this page was computed from “553f85” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.