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Recognised as Colour

#555FF8

  • #555FF8
  • Blue
  • Dark
  • Nearest: Medium slateblue

#555FF8 is a blue with RGB values 85, 95, 248 and HSL 236°, 92%, 65%. It is a dark colour, so white text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#555FF8#555FF8
HEX#555FF8
RGBrgb(85, 95, 248)
RGB (0–1)0.3333, 0.3725, 0.9725
RGB percentages33.3%, 37.3%, 97.3%
HSLhsl(236.3, 92.1%, 65.3%)
HSV / HSBhsv(236.3, 65.7%, 97.3%)
CMYK65.7%, 61.7%, 0%, 2.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,595,128
CSS custom property--colour: #555FF8;

Brightness & contrast

Relative luminance0.16893WCAG 2.x, 0 is black and 1 is white
Perceived brightness120.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.8:1
Contrast with white4.8:1WCAG normal text: AA
Contrast with black4.38:1WCAG normal text: Fail
Greyscale equivalent#686868
Inverted#AAA007

Colour vision & accessibility

Protanopia#007AFDno red cones; affects about 1% of men; ΔE 22.4 from the original
Deuteranopia#006BF5no green cones; the most common form, about 1% of men; ΔE 15 from the original
Tritanopia#0086A3no blue cones; rare, and affects men and women equally; ΔE 82.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.8:1WCAG large text: AAA
Contrast with black, large text4.38:1WCAG large text: AA

Named colours

Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 13.05, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#F8EE55
Analogous#55B1F8, #9D55F8
Triadic#F8555F, #5FF855
Split complementary#F89D55, #B1F855
Tetradic#F855B0, #F8EE55, #55F89D

Tints, shades & saturation

Lighter +40%#FFFFFF
Lighter +30%#E8E9FE
Lighter +20%#B7BBFC
Lighter +10%#868DFA
Darker −10%#2431F6
Darker −20%#0916DE
Darker −30%#0711AD
Darker −40%#050C7C
More saturated +25%#4E59FF
Less saturated −25%#6B72E2

Channel breakdown

R85
G95
B248
Red85 (33.3%)
Green95 (37.3%)
Blue248 (97.3%)
Hue236.32°
Saturation (HSL)92.09%
Lightness65.29%
Dominant channelBlue
Hex per channelR 55 · G 5F · B F8

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Every value on this page was computed from “555ff8” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.