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Recognised as Colour

#4A409B

  • #4A409B
  • Blue
  • Dark
  • Nearest: Dark slateblue

#4A409B is a blue with RGB values 74, 64, 155 and HSL 247°, 42%, 43%. It is a dark colour, so white text on it reaches 8.4:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#4A409B#4A409B
HEX#4A409B
RGBrgb(74, 64, 155)
RGB (0–1)0.2902, 0.251, 0.6078
RGB percentages29%, 25.1%, 60.8%
HSLhsl(246.6, 41.6%, 42.9%)
HSV / HSBhsv(246.6, 58.7%, 60.8%)
CMYK52.3%, 58.7%, 0%, 39.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,866,203
CSS custom property--colour: #4A409B;

Brightness & contrast

Relative luminance0.07489WCAG 2.x, 0 is black and 1 is white
Perceived brightness82.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.41:1
Contrast with white8.41:1WCAG normal text: AAA
Contrast with black2.5:1WCAG normal text: Fail
Greyscale equivalent#494949
Inverted#B5BF64

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00509Eno red cones; affects about 1% of men; ΔE 18.8 from the original
Deuteranopia#004A99no green cones; the most common form, about 1% of men; ΔE 16.8 from the original
Tritanopia#2A5567no blue cones; rare, and affects men and women equally; ΔE 51.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.41:1WCAG large text: AAA
Contrast with black, large text2.5:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 7.7Rebecca purple · ΔE 13.2Slate blue · ΔE 16.7Midnight blue · ΔE 17.2Royal blue · ΔE 22.7Medium purple · ΔE 23.2
Nearest named CSS colourDark slateblue (#483D8B)ΔE 7.69, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#919B40
Analogous#40639B, #78409B
Triadic#9B4A40, #409B4A
Split complementary#9B7840, #639B40
Tetradic#9B4063, #919B40, #409B78

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C5C1E6
Lighter +30%#A49DD7
Lighter +20%#8279C8
Lighter +10%#6055B9
Darker −10%#393177
Darker −20%#282253
Darker −30%#16132F
Darker −40%#05040B
More saturated +25%#3525B6
Less saturated −25%#5F5B80

Channel breakdown

R74
G64
B155
Red74 (29%)
Green64 (25.1%)
Blue155 (60.8%)
Hue246.59°
Saturation (HSL)41.55%
Lightness42.94%
Dominant channelBlue
Hex per channelR 4A · G 40 · B 9B

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Every value on this page was computed from “4a409b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.