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Recognised as Colour

#4550D8

  • #4550D8
  • Blue
  • Dark
  • Nearest: Medium slateblue

#4550D8 is a blue with RGB values 69, 80, 216 and HSL 236°, 65%, 56%. It is a dark colour, so white text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#4550D8#4550D8
HEX#4550D8
RGBrgb(69, 80, 216)
RGB (0–1)0.2706, 0.3137, 0.8471
RGB percentages27.1%, 31.4%, 84.7%
HSLhsl(235.5, 65.3%, 55.9%)
HSV / HSBhsv(235.5, 68.1%, 84.7%)
CMYK68.1%, 63%, 0%, 15.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,542,680
CSS custom property--colour: #4550D8;

Brightness & contrast

Relative luminance0.1196WCAG 2.x, 0 is black and 1 is white
Perceived brightness102.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.19:1
Contrast with white6.19:1WCAG normal text: AA
Contrast with black3.39:1WCAG normal text: Fail
Greyscale equivalent#575757
Inverted#BAAF27

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0068DCno red cones; affects about 1% of men; ΔE 20.1 from the original
Deuteranopia#005AD5no green cones; the most common form, about 1% of men; ΔE 12.7 from the original
Tritanopia#00738Dno blue cones; rare, and affects men and women equally; ΔE 75.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.19:1WCAG large text: AAA
Contrast with black, large text3.39:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 12.5Slate blue · ΔE 14.2Royal blue · ΔE 15.7Medium purple · ΔE 25.2Rebecca purple · ΔE 25.5Dark orchid · ΔE 28.2
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 12.48, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D8CD45
Analogous#4599D8, #8445D8
Triadic#D84550, #50D845
Split complementary#D88445, #9AD845
Tetradic#D84599, #D8CD45, #45D884

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EEEFFB
Lighter +30%#C3C7F3
Lighter +20%#999FEA
Lighter +10%#6F78E1
Darker −10%#2934C1
Darker −20%#202997
Darker −30%#171D6D
Darker −40%#0E1243
More saturated +25%#2938F4
Less saturated −25%#6168BC

Channel breakdown

R69
G80
B216
Red69 (27.1%)
Green80 (31.4%)
Blue216 (84.7%)
Hue235.51°
Saturation (HSL)65.33%
Lightness55.88%
Dominant channelBlue
Hex per channelR 45 · G 50 · B D8

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Every value on this page was computed from “4550d8” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.