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Recognised as Colour

#64319A

  • #64319A
  • Violet
  • Dark
  • Nearest: Rebecca purple

#64319A is a violet with RGB values 100, 49, 154 and HSL 269°, 52%, 40%. It is a dark colour, so white text on it reaches 8.6:1 contrast (AAA for normal text). The nearest named colour is Rebecca purple.

Colour values

#64319A#64319A
HEX#64319A
RGBrgb(100, 49, 154)
RGB (0–1)0.3922, 0.1922, 0.6039
RGB percentages39.2%, 19.2%, 60.4%
HSLhsl(269.1, 51.7%, 39.8%)
HSV / HSBhsv(269.1, 68.2%, 60.4%)
CMYK35.1%, 68.2%, 0%, 39.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,566,298
CSS custom property--colour: #64319A;

Brightness & contrast

Relative luminance0.07239WCAG 2.x, 0 is black and 1 is white
Perceived brightness84.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.58:1
Contrast with white8.58:1WCAG normal text: AAA
Contrast with black2.45:1WCAG normal text: Fail
Greyscale equivalent#434343
Inverted#9BCE65

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004B9Dno red cones; affects about 1% of men; ΔE 29.8 from the original
Deuteranopia#004C98no green cones; the most common form, about 1% of men; ΔE 32.6 from the original
Tritanopia#594961no blue cones; rare, and affects men and women equally; ΔE 49 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.58:1WCAG large text: AAA
Contrast with black, large text2.45:1WCAG large text: Fail

Named colours

Rebecca purple · ΔE 1.8Indigo · ΔE 15Slate blue · ΔE 17.6Dark slateblue · ΔE 18.9Purple · ΔE 19.6Midnight blue · ΔE 20.4
Nearest named CSS colourRebecca purple (#663399)ΔE 1.83, below the just-noticeable difference
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#679A31
Analogous#31339A, #98319A
Triadic#9A6431, #319A64
Split complementary#9A9931, #329A31
Tetradic#9A3133, #679A31, #319A98

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CBB1E6
Lighter +30%#B18ADA
Lighter +20%#9763CE
Lighter +10%#7D3DC1
Darker −10%#4B2573
Darker −20%#32184D
Darker −30%#190C26
Darker −40%#000000
More saturated +25%#6318B3
Less saturated −25%#654A81

Channel breakdown

R100
G49
B154
Red100 (39.2%)
Green49 (19.2%)
Blue154 (60.4%)
Hue269.14°
Saturation (HSL)51.72%
Lightness39.8%
Dominant channelBlue
Hex per channelR 64 · G 31 · B 9A

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Every value on this page was computed from “64319a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.