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Recognised as Colour

#552D63

  • #552D63
  • Violet
  • Dark
  • Nearest: Dark slateblue

#552D63 is a violet with RGB values 85, 45, 99 and HSL 284°, 38%, 28%. It is a dark colour, so white text on it reaches 10.8:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#552D63#552D63
HEX#552D63
RGBrgb(85, 45, 99)
RGB (0–1)0.3333, 0.1765, 0.3882
RGB percentages33.3%, 17.6%, 38.8%
HSLhsl(284.4, 37.5%, 28.2%)
HSV / HSBhsv(284.4, 54.5%, 38.8%)
CMYK14.1%, 54.5%, 0%, 61.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,582,179
CSS custom property--colour: #552D63;

Brightness & contrast

Relative luminance0.04709WCAG 2.x, 0 is black and 1 is white
Perceived brightness66.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.81:1
Contrast with white10.81:1WCAG normal text: AAA
Contrast with black1.94:1WCAG normal text: Fail
Greyscale equivalent#393939
Inverted#AAD29C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#223B65no red cones; affects about 1% of men; ΔE 23.4 from the original
Deuteranopia#2E3F62no green cones; the most common form, about 1% of men; ΔE 24.2 from the original
Tritanopia#543543no blue cones; rare, and affects men and women equally; ΔE 24.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.81:1WCAG large text: AAA
Contrast with black, large text1.94:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 18.3Midnight blue · ΔE 27.1Rebecca purple · ΔE 27.7Purple · ΔE 33Indigo · ΔE 37.4Dark magenta · ΔE 37.6
Nearest named CSS colourDark slateblue (#483D8B)ΔE 18.34, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3B632D
Analogous#3A2D63, #632D56
Triadic#63552D, #2D6355
Split complementary#56632D, #2D633A
Tetradic#633A2D, #3B632D, #2D5663

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BD90CC
Lighter +30%#A86DBC
Lighter +20%#914DA9
Lighter +10%#733D86
Darker −10%#371D40
Darker −20%#190D1D
Darker −30%#000000
Darker −40%#000000
More saturated +25%#5E1B75
Less saturated −25%#4C3F51

Channel breakdown

R85
G45
B99
Red85 (33.3%)
Green45 (17.6%)
Blue99 (38.8%)
Hue284.44°
Saturation (HSL)37.5%
Lightness28.24%
Dominant channelBlue
Hex per channelR 55 · G 2D · B 63

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Every value on this page was computed from “552d63” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.