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Colour

#817AA6

  • #817AA6
  • Blue
  • Dark
  • Nearest: Light slate grey

#817AA6 is a blue with RGB values 129, 122, 166 and HSL 250°, 20%, 56%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Light slate grey.

Colour values

#817AA6#817AA6
HEX#817AA6
RGBrgb(129, 122, 166)
RGB (0–1)0.5059, 0.4784, 0.651
RGB percentages50.6%, 47.8%, 65.1%
HSLhsl(249.5, 19.8%, 56.5%)
HSV / HSBhsv(249.5, 26.5%, 65.1%)
CMYK22.3%, 26.5%, 0%, 34.9%naive device-independent conversion; real print needs an ICC profile
24-bit integer8,485,542
CSS custom property--colour: #817AA6;

Brightness & contrast

Relative luminance0.21339WCAG 2.x, 0 is black and 1 is white
Perceived brightness129.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.27:1
Contrast with white3.99:1WCAG normal text: Fail
Contrast with black5.27:1WCAG normal text: AA
Greyscale equivalent#7F7F7F
Inverted#7E8559

Colour vision & accessibility

Protanopia#6F80A8no red cones; affects about 1% of men; ΔE 8.7 from the original
Deuteranopia#707FA5no green cones; the most common form, about 1% of men; ΔE 8.5 from the original
Tritanopia#798189no blue cones; rare, and affects men and women equally; ΔE 21.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.99:1WCAG large text: AA
Contrast with black, large text5.27:1WCAG large text: AAA

Named colours

Nearest named CSS colourLight slate grey (#778899)ΔE 18.67, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#9FA67A
Analogous#7A89A6, #977AA6
Triadic#A6817A, #7AA681
Split complementary#A6977A, #89A67A
Tetradic#A67A89, #9FA67A, #7AA697

Tints, shades & saturation

Lighter +40%#F5F4F8
Lighter +30%#D8D6E3
Lighter +20%#BBB7CF
Lighter +10%#9E99BA
Darker −10%#665F8E
Darker −20%#504B6F
Darker −30%#3A3651
Darker −40%#242232
More saturated +25%#6E5EC2
Less saturated −25%#909090

Channel breakdown

R129
G122
B166
Red129 (50.6%)
Green122 (47.8%)
Blue166 (65.1%)
Hue249.55°
Saturation (HSL)19.82%
Lightness56.47%
Dominant channelBlue
Hex per channelR 81 · G 7A · B A6

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Every value on this page was computed from “817aa6” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.