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Recognised as Colour

#8580FD

  • #8580FD
  • Blue
  • Dark
  • Nearest: Medium slateblue

#8580FD is a blue with RGB values 133, 128, 253 and HSL 242°, 97%, 75%. It is a dark colour, so black text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#8580FD#8580FD
HEX#8580FD
RGBrgb(133, 128, 253)
RGB (0–1)0.5216, 0.502, 0.9922
RGB percentages52.2%, 50.2%, 99.2%
HSLhsl(242.4, 96.9%, 74.7%)
HSV / HSBhsv(242.4, 49.4%, 99.2%)
CMYK47.4%, 49.4%, 0%, 0.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,749,309
CSS custom property--colour: #8580FD;

Brightness & contrast

Relative luminance0.27517WCAG 2.x, 0 is black and 1 is white
Perceived brightness149 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.5:1
Contrast with white3.23:1WCAG normal text: Fail
Contrast with black6.5:1WCAG normal text: AA
Greyscale equivalent#8A8A8A
Inverted#7A7F02

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4694FFno red cones; affects about 1% of men; ΔE 22.6 from the original
Deuteranopia#3E8BFAno green cones; the most common form, about 1% of men; ΔE 19.8 from the original
Tritanopia#5A9BB3no blue cones; rare, and affects men and women equally; ΔE 64.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.23:1WCAG large text: AA
Contrast with black, large text6.5:1WCAG large text: AAA

Named colours

Medium slateblue · ΔE 11Medium purple · ΔE 13.1Royal blue · ΔE 14.1Slate blue · ΔE 14.9Dodgerblue · ΔE 23.7Cornflower blue · ΔE 27.5
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 11.01, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F8FD80
Analogous#80BAFD, #C480FD
Triadic#FD8580, #80FD85
Split complementary#FDC380, #BAFD80
Tetradic#FD80BA, #F8FD80, #80FDC3

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#E5E4FF
Lighter +10%#B5B2FE
Darker −10%#554EFC
Darker −20%#251CFB
Darker −30%#0C04E0
Darker −40%#0A03AE
More saturated +25%#837EFF
Less saturated −25%#9490ED

Channel breakdown

R133
G128
B253
Red133 (52.2%)
Green128 (50.2%)
Blue253 (99.2%)
Hue242.4°
Saturation (HSL)96.9%
Lightness74.71%
Dominant channelBlue
Hex per channelR 85 · G 80 · B FD

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Every value on this page was computed from “8580fd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.