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Recognised as Colour

#8581FC

  • #8581FC
  • Blue
  • Dark
  • Nearest: Medium slateblue

#8581FC is a blue with RGB values 133, 129, 252 and HSL 242°, 95%, 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

#8581FC#8581FC
HEX#8581FC
RGBrgb(133, 129, 252)
RGB (0–1)0.5216, 0.5059, 0.9882
RGB percentages52.2%, 50.6%, 98.8%
HSLhsl(242, 95.3%, 74.7%)
HSV / HSBhsv(242, 48.8%, 98.8%)
CMYK47.2%, 48.8%, 0%, 1.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,749,564
CSS custom property--colour: #8581FC;

Brightness & contrast

Relative luminance0.27715WCAG 2.x, 0 is black and 1 is white
Perceived brightness149.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.54:1
Contrast with white3.21:1WCAG normal text: Fail
Contrast with black6.54:1WCAG normal text: AA
Greyscale equivalent#8B8B8B
Inverted#7A7E03

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4994FFno red cones; affects about 1% of men; ΔE 21.3 from the original
Deuteranopia#418BF9no green cones; the most common form, about 1% of men; ΔE 18.9 from the original
Tritanopia#5B9BB3no blue cones; rare, and affects men and women equally; ΔE 62.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.21:1WCAG large text: AA
Contrast with black, large text6.54:1WCAG large text: AAA

Named colours

Medium slateblue · ΔE 12Medium purple · ΔE 12.6Royal blue · ΔE 14.1Slate blue · ΔE 15.1Dodgerblue · ΔE 22.9Cornflower blue · ΔE 26.3
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 12.02, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F8FC81
Analogous#81BAFC, #C381FC
Triadic#FC8581, #81FC85
Split complementary#FCC381, #BBFC81
Tetradic#FC81BA, #F8FC81, #81FCC3

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#E5E5FE
Lighter +10%#B5B3FD
Darker −10%#554FFB
Darker −20%#251DFA
Darker −30%#0C05DF
Darker −40%#0A04AD
More saturated +25%#827EFF
Less saturated −25%#9491EC

Channel breakdown

R133
G129
B252
Red133 (52.2%)
Green129 (50.6%)
Blue252 (98.8%)
Hue241.95°
Saturation (HSL)95.35%
Lightness74.71%
Dominant channelBlue
Hex per channelR 85 · G 81 · B FC

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Every value on this page was computed from “8581fc” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.