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Recognised as Colour

#643BDE

  • #643BDE
  • Violet
  • Dark
  • Nearest: Blue violet

#643BDE is a violet with RGB values 100, 59, 222 and HSL 255°, 71%, 55%. It is a dark colour, so white text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Blue violet.

Colour values

#643BDE#643BDE
HEX#643BDE
RGBrgb(100, 59, 222)
RGB (0–1)0.3922, 0.2314, 0.8706
RGB percentages39.2%, 23.1%, 87.1%
HSLhsl(255.1, 71.2%, 55.1%)
HSV / HSBhsv(255.1, 73.4%, 87.1%)
CMYK55%, 73.4%, 0%, 12.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,568,926
CSS custom property--colour: #643BDE;

Brightness & contrast

Relative luminance0.11111WCAG 2.x, 0 is black and 1 is white
Perceived brightness103.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.52:1
Contrast with white6.52:1WCAG normal text: AA
Contrast with black3.22:1WCAG normal text: Fail
Greyscale equivalent#4F4F4F
Inverted#9BC421

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0062E3no red cones; affects about 1% of men; ΔE 30.8 from the original
Deuteranopia#0059DBno green cones; the most common form, about 1% of men; ΔE 27.7 from the original
Tritanopia#2D688Ano blue cones; rare, and affects men and women equally; ΔE 83.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.52:1WCAG large text: AAA
Contrast with black, large text3.22:1WCAG large text: AA

Named colours

Blue violet · ΔE 13.2Dark orchid · ΔE 18.8Dark violet · ΔE 20.3Medium slateblue · ΔE 23.1Medium blue · ΔE 23.3Dark blue · ΔE 27.1
Nearest named CSS colourBlue violet (#8A2BE2)ΔE 13.17, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B5DE3B
Analogous#3B64DE, #B53BDE
Triadic#DE643B, #3BDE64
Split complementary#DEB53B, #64DE3B
Tetradic#DE3B64, #B5DE3B, #3BDEB5

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EEEAFB
Lighter +30%#CCBEF4
Lighter +20%#A992ED
Lighter +10%#8767E5
Darker −10%#4A21C5
Darker −20%#3A1A99
Darker −30%#29126E
Darker −40%#190B42
More saturated +25%#561EFB
Less saturated −25%#7258C1

Channel breakdown

R100
G59
B222
Red100 (39.2%)
Green59 (23.1%)
Blue222 (87.1%)
Hue255.09°
Saturation (HSL)71.18%
Lightness55.1%
Dominant channelBlue
Hex per channelR 64 · G 3B · B DE

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Every value on this page was computed from “643bde” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.