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Colour

#8173B2

  • #8173B2
  • Blue
  • Dark
  • Nearest: Cornflower blue

#8173B2 is a blue with RGB values 129, 115, 178 and HSL 253°, 29%, 57%. It is a dark colour, so black text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#8173B2#8173B2
HEX#8173B2
RGBrgb(129, 115, 178)
RGB (0–1)0.5059, 0.451, 0.698
RGB percentages50.6%, 45.1%, 69.8%
HSLhsl(253.3, 29%, 57.5%)
HSV / HSBhsv(253.3, 35.4%, 69.8%)
CMYK27.5%, 35.4%, 0%, 30.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,483,762
CSS custom property--colour: #8173B2;

Brightness & contrast

Relative luminance0.20143WCAG 2.x, 0 is black and 1 is white
Perceived brightness127.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.03:1
Contrast with white4.18:1WCAG normal text: Fail
Contrast with black5.03:1WCAG normal text: AA
Greyscale equivalent#7B7B7B
Inverted#7E8C4D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#627DB5no red cones; affects about 1% of men; ΔE 13.9 from the original
Deuteranopia#647BB0no green cones; the most common form, about 1% of men; ΔE 13.7 from the original
Tritanopia#777E8Ano blue cones; rare, and affects men and women equally; ΔE 31 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.18:1WCAG large text: AA
Contrast with black, large text5.03:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 22.8Steel blue · ΔE 23.6Dark slateblue · ΔE 24.6Medium purple · ΔE 25.6Plum · ΔE 26.8Light slate grey · ΔE 30
Nearest named CSS colourCornflower blue (#6495ED)ΔE 22.77, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A4B273
Analogous#7384B2, #A173B2
Triadic#B28173, #73B281
Split complementary#B2A173, #84B273
Tetradic#B27384, #A4B273, #73B2A1

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F7F7FA
Lighter +30%#DAD6E8
Lighter +20%#BCB5D6
Lighter +10%#9F94C4
Darker −10%#65569C
Darker −20%#50447B
Darker −30%#3B325A
Darker −40%#252039
More saturated +25%#7258CD
Less saturated −25%#908E97

Channel breakdown

R129
G115
B178
Red129 (50.6%)
Green115 (45.1%)
Blue178 (69.8%)
Hue253.33°
Saturation (HSL)29.03%
Lightness57.45%
Dominant channelBlue
Hex per channelR 81 · G 73 · B B2

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Every value on this page was computed from “8173b2” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.