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Recognised as Colour

#8A8191

  • #8A8191
  • Grey
  • Dark
  • Nearest: Slate grey

#8A8191 is a grey with RGB values 138, 129, 145 and HSL 274°, 7%, 54%. It is a dark colour, so black text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Slate grey.

Colour values

#8A8191#8A8191
HEX#8A8191
RGBrgb(138, 129, 145)
RGB (0–1)0.5412, 0.5059, 0.5686
RGB percentages54.1%, 50.6%, 56.9%
HSLhsl(273.8, 6.8%, 53.7%)
HSV / HSBhsv(273.8, 11%, 56.9%)
CMYK4.8%, 11%, 0%, 43.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer9,077,137
CSS custom property--colour: #8A8191;

Brightness & contrast

Relative luminance0.23148WCAG 2.x, 0 is black and 1 is white
Perceived brightness133.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.63:1
Contrast with white3.73:1WCAG normal text: Fail
Contrast with black5.63:1WCAG normal text: AA
Greyscale equivalent#848484
Inverted#757E6E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#7F8492no red cones; affects about 1% of men; ΔE 5.5 from the original
Deuteranopia#818490no green cones; the most common form, about 1% of men; ΔE 5.2 from the original
Tritanopia#898386no blue cones; rare, and affects men and women equally; ΔE 7.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.73:1WCAG large text: AA
Contrast with black, large text5.63:1WCAG large text: AAA

Named colours

Slate grey · ΔE 9.6Light slate grey · ΔE 9.6Gray · ΔE 10Dim grey · ΔE 14.6Dark grey · ΔE 17.1Rosy brown · ΔE 19.4
Nearest named CSS colourSlate grey (#708090)ΔE 9.57, clearly different but related
Hue familygrey
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#889181
Analogous#828191, #918190
Triadic#918A81, #81918A
Split complementary#909181, #819182
Tetradic#918281, #889181, #819091

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EFEEF0
Lighter +30%#D6D3D8
Lighter +20%#BDB7C1
Lighter +10%#A39CA9
Darker −10%#706877
Darker −20%#57505C
Darker −30%#3D3841
Darker −40%#232125
More saturated +25%#8E63AF
Less saturated −25%#898989

Channel breakdown

R138
G129
B145
Red138 (54.1%)
Green129 (50.6%)
Blue145 (56.9%)
Hue273.75°
Saturation (HSL)6.78%
Lightness53.73%
Dominant channelBlue
Hex per channelR 8A · G 81 · B 91

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Every value on this page was computed from “8a8191” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.