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Recognised as Colour

#6639DF

  • #6639DF
  • Violet
  • Dark
  • Nearest: Blue violet

#6639DF is a violet with RGB values 102, 57, 223 and HSL 256°, 72%, 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

#6639DF#6639DF
HEX#6639DF
RGBrgb(102, 57, 223)
RGB (0–1)0.4, 0.2235, 0.8745
RGB percentages40%, 22.4%, 87.5%
HSLhsl(256.3, 72.2%, 54.9%)
HSV / HSBhsv(256.3, 74.4%, 87.5%)
CMYK54.3%, 74.4%, 0%, 12.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,699,487
CSS custom property--colour: #6639DF;

Brightness & contrast

Relative luminance0.11079WCAG 2.x, 0 is black and 1 is white
Perceived brightness103.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.53:1
Contrast with white6.53:1WCAG normal text: AA
Contrast with black3.22:1WCAG normal text: Fail
Greyscale equivalent#4F4F4F
Inverted#99C620

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0061E4no red cones; affects about 1% of men; ΔE 31.2 from the original
Deuteranopia#0059DCno green cones; the most common form, about 1% of men; ΔE 28.9 from the original
Tritanopia#32678Ano blue cones; rare, and affects men and women equally; ΔE 83.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.53:1WCAG large text: AAA
Contrast with black, large text3.22:1WCAG large text: AA

Named colours

Blue violet · ΔE 11.8Dark orchid · ΔE 18.8Dark violet · ΔE 19.1Medium blue · ΔE 22.2Medium slateblue · ΔE 24.5Dark blue · ΔE 27.6
Nearest named CSS colourBlue violet (#8A2BE2)ΔE 11.85, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B2DF39
Analogous#395FDF, #B939DF
Triadic#DF6639, #39DF66
Split complementary#DFB939, #5FDF39
Tetradic#DF395F, #B2DF39, #39DFB9

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EEE9FB
Lighter +30%#CCBDF4
Lighter +20%#AA91ED
Lighter +10%#8865E6
Darker −10%#4D20C5
Darker −20%#3C1999
Darker −30%#2B126D
Darker −40%#190B41
More saturated +25%#591CFC
Less saturated −25%#7356C2

Channel breakdown

R102
G57
B223
Red102 (40%)
Green57 (22.4%)
Blue223 (87.5%)
Hue256.27°
Saturation (HSL)72.17%
Lightness54.9%
Dominant channelBlue
Hex per channelR 66 · G 39 · B DF

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Every value on this page was computed from “6639df” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.