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Recognised as Colour

#81728B

  • #81728B
  • Violet
  • Dark
  • Nearest: Slate grey

#81728B is a violet with RGB values 129, 114, 139 and HSL 276°, 10%, 50%. It is a dark colour, so black text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Slate grey.

Colour values

#81728B#81728B
HEX#81728B
RGBrgb(129, 114, 139)
RGB (0–1)0.5059, 0.4471, 0.5451
RGB percentages50.6%, 44.7%, 54.5%
HSLhsl(276, 9.9%, 49.6%)
HSV / HSBhsv(276, 18%, 54.5%)
CMYK7.2%, 18%, 0%, 45.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,483,467
CSS custom property--colour: #81728B;

Brightness & contrast

Relative luminance0.18566WCAG 2.x, 0 is black and 1 is white
Perceived brightness121.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.71:1
Contrast with white4.46:1WCAG normal text: Fail
Contrast with black4.71:1WCAG normal text: AA
Greyscale equivalent#777777
Inverted#7E8D74

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6F778Cno red cones; affects about 1% of men; ΔE 9.1 from the original
Deuteranopia#71788Ano green cones; the most common form, about 1% of men; ΔE 9.4 from the original
Tritanopia#80757Ano blue cones; rare, and affects men and women equally; ΔE 11.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.46:1WCAG large text: AA
Contrast with black, large text4.71:1WCAG large text: AAA

Named colours

Slate grey · ΔE 13.3Light slate grey · ΔE 14.3Gray · ΔE 16.1Dim grey · ΔE 16.8Rosy brown · ΔE 23.4Dark grey · ΔE 24.7
Nearest named CSS colourSlate grey (#708090)ΔE 13.26, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7C8B72
Analogous#75728B, #8B7289
Triadic#8B8172, #728B81
Split complementary#898B72, #728B75
Tetradic#8B7572, #7C8B72, #72898B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E5E2E7
Lighter +30%#CCC6D0
Lighter +20%#B3AAB9
Lighter +10%#9A8EA2
Darker −10%#675B6F
Darker −20%#4D4453
Darker −30%#332D37
Darker −40%#19161B
More saturated +25%#8752AB
Less saturated −25%#7F7F7F

Channel breakdown

R129
G114
B139
Red129 (50.6%)
Green114 (44.7%)
Blue139 (54.5%)
Hue276°
Saturation (HSL)9.88%
Lightness49.61%
Dominant channelBlue
Hex per channelR 81 · G 72 · B 8B

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Every value on this page was computed from “81728b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.