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Recognised as Colour

#553D69

  • #553D69
  • Violet
  • Dark
  • Nearest: Dark slateblue

#553D69 is a violet with RGB values 85, 61, 105 and HSL 273°, 27%, 33%. It is a dark colour, so white text on it reaches 9.3:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#553D69#553D69
HEX#553D69
RGBrgb(85, 61, 105)
RGB (0–1)0.3333, 0.2392, 0.4118
RGB percentages33.3%, 23.9%, 41.2%
HSLhsl(272.7, 26.5%, 32.5%)
HSV / HSBhsv(272.7, 41.9%, 41.2%)
CMYK19%, 41.9%, 0%, 58.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,586,281
CSS custom property--colour: #553D69;

Brightness & contrast

Relative luminance0.06289WCAG 2.x, 0 is black and 1 is white
Perceived brightness74.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.3:1
Contrast with white9.3:1WCAG normal text: AAA
Contrast with black2.26:1WCAG normal text: Fail
Greyscale equivalent#454545
Inverted#AAC296

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#34466Bno red cones; affects about 1% of men; ΔE 15.8 from the original
Deuteranopia#394768no green cones; the most common form, about 1% of men; ΔE 15.9 from the original
Tritanopia#52444Eno blue cones; rare, and affects men and women equally; ΔE 21.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.3:1WCAG large text: AAA
Contrast with black, large text2.26:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 21.2Dim grey · ΔE 32.8Midnight blue · ΔE 33.4Slate grey · ΔE 33.6Rebecca purple · ΔE 34.3Steel blue · ΔE 34.4
Nearest named CSS colourDark slateblue (#483D8B)ΔE 21.2, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#51693D
Analogous#3F3D69, #693D67
Triadic#69553D, #3D6955
Split complementary#67693D, #3D693F
Tetradic#693F3D, #51693D, #3D6769

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BBA6CC
Lighter +30%#A286B9
Lighter +20%#8966A6
Lighter +10%#6F5089
Darker −10%#3B2A49
Darker −20%#211828
Darker −30%#070508
Darker −40%#000000
More saturated +25%#57287E
Less saturated −25%#535254

Channel breakdown

R85
G61
B105
Red85 (33.3%)
Green61 (23.9%)
Blue105 (41.2%)
Hue272.73°
Saturation (HSL)26.51%
Lightness32.55%
Dominant channelBlue
Hex per channelR 55 · G 3D · B 69

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Every value on this page was computed from “553d69” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.