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Recognised as Colour

#4C3683

  • #4C3683
  • Violet
  • Dark
  • Nearest: Dark slateblue

#4C3683 is a violet with RGB values 76, 54, 131 and HSL 257°, 42%, 36%. It is a dark colour, so white text on it reaches 9.7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#4C3683#4C3683
HEX#4C3683
RGBrgb(76, 54, 131)
RGB (0–1)0.298, 0.2118, 0.5137
RGB percentages29.8%, 21.2%, 51.4%
HSLhsl(257.1, 41.6%, 36.3%)
HSV / HSBhsv(257.1, 58.8%, 51.4%)
CMYK42%, 58.8%, 0%, 48.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,994,691
CSS custom property--colour: #4C3683;

Brightness & contrast

Relative luminance0.05814WCAG 2.x, 0 is black and 1 is white
Perceived brightness73.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.71:1
Contrast with white9.71:1WCAG normal text: AAA
Contrast with black2.16:1WCAG normal text: Fail
Greyscale equivalent#404040
Inverted#B3C97C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0B4586no red cones; affects about 1% of men; ΔE 20.1 from the original
Deuteranopia#134381no green cones; the most common form, about 1% of men; ΔE 20.2 from the original
Tritanopia#3D4757no blue cones; rare, and affects men and women equally; ΔE 41.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.71:1WCAG large text: AAA
Contrast with black, large text2.16:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 4Rebecca purple · ΔE 16.1Midnight blue · ΔE 16.4Slate blue · ΔE 25.1Indigo · ΔE 27.6Medium purple · ΔE 28.9
Nearest named CSS colourDark slateblue (#483D8B)ΔE 3.99, a close match
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6D8336
Analogous#364783, #723683
Triadic#834C36, #36834C
Split complementary#837236, #478336
Tetradic#833647, #6D8336, #368372

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B8A9DC
Lighter +30%#9A85CD
Lighter +20%#7C61BE
Lighter +10%#6145A7
Darker −10%#37275F
Darker −20%#22183B
Darker −30%#0D0917
Darker −40%#000000
More saturated +25%#421F9A
Less saturated −25%#564D6C

Channel breakdown

R76
G54
B131
Red76 (29.8%)
Green54 (21.2%)
Blue131 (51.4%)
Hue257.14°
Saturation (HSL)41.62%
Lightness36.27%
Dominant channelBlue
Hex per channelR 4C · G 36 · B 83

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Every value on this page was computed from “4c3683” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.