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Recognised as Colour

#4E66B0

  • #4E66B0
  • Blue
  • Dark
  • Nearest: Dark slateblue

#4E66B0 is a blue with RGB values 78, 102, 176 and HSL 225°, 39%, 50%. It is a dark colour, so white text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Dark slateblue.

Colour values

#4E66B0#4E66B0
HEX#4E66B0
RGBrgb(78, 102, 176)
RGB (0–1)0.3059, 0.4, 0.6902
RGB percentages30.6%, 40%, 69%
HSLhsl(225.3, 38.6%, 49.8%)
HSV / HSBhsv(225.3, 55.7%, 69%)
CMYK55.7%, 42%, 0%, 31%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,138,096
CSS custom property--colour: #4E66B0;

Brightness & contrast

Relative luminance0.14257WCAG 2.x, 0 is black and 1 is white
Perceived brightness107 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.45:1
Contrast with white5.45:1WCAG normal text: AA
Contrast with black3.85:1WCAG normal text: Fail
Greyscale equivalent#666666
Inverted#B1994F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#476EB3no red cones; affects about 1% of men; ΔE 6 from the original
Deuteranopia#3B65AEno green cones; the most common form, about 1% of men; ΔE 4.2 from the original
Tritanopia#167682no blue cones; rare, and affects men and women equally; ΔE 44.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.45:1WCAG large text: AAA
Contrast with black, large text3.85:1WCAG large text: AA

Named colours

Dark slateblue · ΔE 18.8Cornflower blue · ΔE 19.1Steel blue · ΔE 21.6Dodgerblue · ΔE 26Royal blue · ΔE 26.6Medium purple · ΔE 26.9
Nearest named CSS colourDark slateblue (#483D8B)ΔE 18.77, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B0984E
Analogous#4E97B0, #674EB0
Triadic#B04E66, #66B04E
Split complementary#B0674E, #97B04E
Tetradic#B04E97, #B0984E, #4EB067

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DBE0EF
Lighter +30%#B8C1DF
Lighter +20%#94A3D0
Lighter +10%#7184C0
Darker −10%#3E528D
Darker −20%#2F3D69
Darker −30%#1F2946
Darker −40%#0F1423
More saturated +25%#2E56D0
Less saturated −25%#6E7690

Channel breakdown

R78
G102
B176
Red78 (30.6%)
Green102 (40%)
Blue176 (69%)
Hue225.31°
Saturation (HSL)38.58%
Lightness49.8%
Dominant channelBlue
Hex per channelR 4E · G 66 · B B0

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Every value on this page was computed from “4e66b0” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.