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Recognised as Colour

#491CA9

  • #491CA9
  • Violet
  • Dark
  • Nearest: Dark blue

#491CA9 is a violet with RGB values 73, 28, 169 and HSL 259°, 72%, 39%. It is a dark colour, so white text on it reaches 10.4:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#491CA9#491CA9
HEX#491CA9
RGBrgb(73, 28, 169)
RGB (0–1)0.2863, 0.1098, 0.6627
RGB percentages28.6%, 11%, 66.3%
HSLhsl(259.1, 71.6%, 38.6%)
HSV / HSBhsv(259.1, 83.4%, 66.3%)
CMYK56.8%, 83.4%, 0%, 33.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,791,465
CSS custom property--colour: #491CA9;

Brightness & contrast

Relative luminance0.05112WCAG 2.x, 0 is black and 1 is white
Perceived brightness72.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.38:1
Contrast with white10.38:1WCAG normal text: AAA
Contrast with black2.02:1WCAG normal text: Fail
Greyscale equivalent#303030
Inverted#B6E356

Colour vision & accessibility

Protanopia#0043ADno red cones; affects about 1% of men; ΔE 27.9 from the original
Deuteranopia#003CA7no green cones; the most common form, about 1% of men; ΔE 25.2 from the original
Tritanopia#1C4865no blue cones; rare, and affects men and women equally; ΔE 73.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.38:1WCAG large text: AAA
Contrast with black, large text2.02:1WCAG large text: Fail

Named colours

Nearest named CSS colourDark blue (#00008B)ΔE 12.74, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#7CA91C
Analogous#1C35A9, #901CA9
Triadic#A9491C, #1CA949
Split complementary#A9901C, #35A91C
Tetradic#A91C36, #7CA91C, #1CA990

Tints, shades & saturation

Lighter +40%#BAA1F0
Lighter +30%#9A76E8
Lighter +20%#7A4AE1
Lighter +10%#5C23D5
Darker −10%#36157D
Darker −20%#230E51
Darker −30%#100626
Darker −40%#000000
More saturated +25%#4003C2
Less saturated −25%#523590

Channel breakdown

R73
G28
B169
Red73 (28.6%)
Green28 (11%)
Blue169 (66.3%)
Hue259.15°
Saturation (HSL)71.57%
Lightness38.63%
Dominant channelBlue
Hex per channelR 49 · G 1C · B A9

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Every value on this page was computed from “491ca9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.