Nerdulator> put something in

Recognised as Colour

#6639DE

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

#6639DE is a violet with RGB values 102, 57, 222 and HSL 256°, 71%, 55%. It is a dark colour, so white text on it reaches 6.6:1 contrast (AA for normal text). The nearest named colour is Blue violet.

Colour values

#6639DE#6639DE
HEX#6639DE
RGBrgb(102, 57, 222)
RGB (0–1)0.4, 0.2235, 0.8706
RGB percentages40%, 22.4%, 87.1%
HSLhsl(256.4, 71.4%, 54.7%)
HSV / HSBhsv(256.4, 74.3%, 87.1%)
CMYK54.1%, 74.3%, 0%, 12.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,699,486
CSS custom property--colour: #6639DE;

Brightness & contrast

Relative luminance0.11025WCAG 2.x, 0 is black and 1 is white
Perceived brightness103.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.55:1
Contrast with white6.55:1WCAG normal text: AA
Contrast with black3.2:1WCAG normal text: Fail
Greyscale equivalent#4E4E4E
Inverted#99C621

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0061E3no red cones; affects about 1% of men; ΔE 31.3 from the original
Deuteranopia#0059DBno green cones; the most common form, about 1% of men; ΔE 29 from the original
Tritanopia#336789no 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 text6.55:1WCAG large text: AAA
Contrast with black, large text3.2:1WCAG large text: AA

Named colours

Blue violet · ΔE 12Dark orchid · ΔE 18.5Dark violet · ΔE 19.2Medium blue · ΔE 22.6Medium slateblue · ΔE 24.2Dark blue · ΔE 27.3
Nearest named CSS colourBlue violet (#8A2BE2)ΔE 12.05, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B1DE39
Analogous#395EDE, #B839DE
Triadic#DE6639, #39DE66
Split complementary#DEB939, #5EDE39
Tetradic#DE395F, #B1DE39, #39DEB9

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EDE8FB
Lighter +30%#CBBCF4
Lighter +20%#AA90ED
Lighter +10%#8865E5
Darker −10%#4D21C3
Darker −20%#3C1998
Darker −30%#2B126C
Darker −40%#190B40
More saturated +25%#591CFB
Less saturated −25%#7356C1

Channel breakdown

R102
G57
B222
Red102 (40%)
Green57 (22.4%)
Blue222 (87.1%)
Hue256.36°
Saturation (HSL)71.43%
Lightness54.71%
Dominant channelBlue
Hex per channelR 66 · G 39 · B DE

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

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