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Recognised as Colour

#8180A8

  • #8180A8
  • Blue
  • Dark
  • Nearest: Light slate grey

#8180A8 is a blue with RGB values 129, 128, 168 and HSL 242°, 19%, 58%. It is a dark colour, so black text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Light slate grey.

Colour values

#8180A8#8180A8
HEX#8180A8
RGBrgb(129, 128, 168)
RGB (0–1)0.5059, 0.502, 0.6588
RGB percentages50.6%, 50.2%, 65.9%
HSLhsl(241.5, 18.7%, 58%)
HSV / HSBhsv(241.5, 23.8%, 65.9%)
CMYK23.2%, 23.8%, 0%, 34.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,487,080
CSS custom property--colour: #8180A8;

Brightness & contrast

Relative luminance0.22933WCAG 2.x, 0 is black and 1 is white
Perceived brightness133.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.59:1
Contrast with white3.76:1WCAG normal text: Fail
Contrast with black5.59:1WCAG normal text: AA
Greyscale equivalent#838383
Inverted#7E7F57

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#7685AAno red cones; affects about 1% of men; ΔE 5.9 from the original
Deuteranopia#7583A7no green cones; the most common form, about 1% of men; ΔE 5.8 from the original
Tritanopia#78878Eno blue cones; rare, and affects men and women equally; ΔE 20.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.76:1WCAG large text: AA
Contrast with black, large text5.59:1WCAG large text: AAA

Named colours

Light slate grey · ΔE 15.3Slate grey · ΔE 15.7Steel blue · ΔE 17.6Gray · ΔE 23.1Dim grey · ΔE 25.3Light steelblue · ΔE 26.4
Nearest named CSS colourLight slate grey (#778899)ΔE 15.26, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A7A880
Analogous#8093A8, #9580A8
Triadic#A88180, #80A881
Split complementary#A89580, #93A880
Tetradic#A88093, #A7A880, #80A895

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F9F9FB
Lighter +30%#DBDBE6
Lighter +20%#BDBDD1
Lighter +10%#9F9EBD
Darker −10%#656491
Darker −20%#504F73
Darker −30%#3B3A55
Darker −40%#262537
More saturated +25%#6865C3
Less saturated −25%#949494

Channel breakdown

R129
G128
B168
Red129 (50.6%)
Green128 (50.2%)
Blue168 (65.9%)
Hue241.5°
Saturation (HSL)18.69%
Lightness58.04%
Dominant channelBlue
Hex per channelR 81 · G 80 · B A8

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Every value on this page was computed from “8180a8” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.