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Colour

#553F6B

  • #553F6B
  • Violet
  • Dark
  • Nearest: Dark slateblue

#553F6B is a violet with RGB values 85, 63, 107 and HSL 270°, 26%, 33%. It is a dark colour, so white text on it reaches 9.1:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#553F6B#553F6B
HEX#553F6B
RGBrgb(85, 63, 107)
RGB (0–1)0.3333, 0.2471, 0.4196
RGB percentages33.3%, 24.7%, 42%
HSLhsl(270, 25.9%, 33.3%)
HSV / HSBhsv(270, 41.1%, 42%)
CMYK20.6%, 41.1%, 0%, 58%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,586,795
CSS custom property--colour: #553F6B;

Brightness & contrast

Relative luminance0.06548WCAG 2.x, 0 is black and 1 is white
Perceived brightness76.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.09:1
Contrast with white9.09:1WCAG normal text: AAA
Contrast with black2.31:1WCAG normal text: Fail
Greyscale equivalent#474747
Inverted#AAC094

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#35486Dno red cones; affects about 1% of men; ΔE 15.3 from the original
Deuteranopia#3A496Ano green cones; the most common form, about 1% of men; ΔE 15.5 from the original
Tritanopia#524650no blue cones; rare, and affects men and women equally; ΔE 21.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.09:1WCAG large text: AAA
Contrast with black, large text2.31:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 21.1Dim grey · ΔE 32.3Slate grey · ΔE 32.8Steel blue · ΔE 33.4Midnight blue · ΔE 33.7Rebecca purple · ΔE 34.6
Nearest named CSS colourDark slateblue (#483D8B)ΔE 21.14, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#556B3F
Analogous#3F3F6B, #6B3F6B
Triadic#6B553F, #3F6B55
Split complementary#6B6B3F, #3F6B3F
Tetradic#6B3F3F, #556B3F, #3F6B6B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BBA9CD
Lighter +30%#A289BA
Lighter +20%#8869A7
Lighter +10%#6F528B
Darker −10%#3C2C4B
Darker −20%#22192B
Darker −30%#09060B
Darker −40%#000000
More saturated +25%#552A80
Less saturated −25%#555456

Channel breakdown

R85
G63
B107
Red85 (33.3%)
Green63 (24.7%)
Blue107 (42%)
Hue270°
Saturation (HSL)25.88%
Lightness33.33%
Dominant channelBlue
Hex per channelR 55 · G 3F · B 6B

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Every value on this page was computed from “553f6b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.