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Recognised as Colour

#4D407B

  • #4D407B
  • Blue
  • Dark
  • Nearest: Dark slateblue

#4D407B is a blue with RGB values 77, 64, 123 and HSL 253°, 32%, 37%. It is a dark colour, so white text on it reaches 9:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#4D407B#4D407B
HEX#4D407B
RGBrgb(77, 64, 123)
RGB (0–1)0.302, 0.251, 0.4824
RGB percentages30.2%, 25.1%, 48.2%
HSLhsl(253.2, 31.6%, 36.7%)
HSV / HSBhsv(253.2, 48%, 48.2%)
CMYK37.4%, 48%, 0%, 51.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,062,779
CSS custom property--colour: #4D407B;

Brightness & contrast

Relative luminance0.06675WCAG 2.x, 0 is black and 1 is white
Perceived brightness76.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.99:1
Contrast with white8.99:1WCAG normal text: AAA
Contrast with black2.33:1WCAG normal text: Fail
Greyscale equivalent#474747
Inverted#B2BF84

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2C4A7Dno red cones; affects about 1% of men; ΔE 14.3 from the original
Deuteranopia#2D487Ano green cones; the most common form, about 1% of men; ΔE 13.8 from the original
Tritanopia#424B57no blue cones; rare, and affects men and women equally; ΔE 31.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.99:1WCAG large text: AAA
Contrast with black, large text2.33:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 11.7Midnight blue · ΔE 26Rebecca purple · ΔE 27.2Steel blue · ΔE 32.6Slate blue · ΔE 33.5Medium purple · ΔE 34.3
Nearest named CSS colourDark slateblue (#483D8B)ΔE 11.73, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6E7B40
Analogous#40517B, #6B407B
Triadic#7B4D40, #407B4D
Split complementary#7B6B40, #517B40
Tetradic#7B4050, #6E7B40, #407B6A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B9B1D6
Lighter +30%#9B8FC5
Lighter +20%#7D6EB3
Lighter +10%#62519D
Darker −10%#382F59
Darker −20%#231D38
Darker −30%#0E0C16
Darker −40%#000000
More saturated +25%#402992
Less saturated −25%#5A5764

Channel breakdown

R77
G64
B123
Red77 (30.2%)
Green64 (25.1%)
Blue123 (48.2%)
Hue253.22°
Saturation (HSL)31.55%
Lightness36.67%
Dominant channelBlue
Hex per channelR 4D · G 40 · B 7B

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Every value on this page was computed from “4d407b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.