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Colour

#4000DF

  • #4000DF
  • Violet
  • Dark
  • Nearest: Medium blue

#4000DF is a violet with RGB values 64, 0, 223 and HSL 257°, 100%, 44%. It is a dark colour, so white text on it reaches 9.2:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#4000DF#4000DF
HEX#4000DF
RGBrgb(64, 0, 223)
RGB (0–1)0.251, 0, 0.8745
RGB percentages25.1%, 0%, 87.5%
HSLhsl(257.2, 100%, 43.7%)
HSV / HSBhsv(257.2, 100%, 87.5%)
CMYK71.3%, 100%, 0%, 12.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,194,527
CSS custom property--colour: #4000DF;

Brightness & contrast

Relative luminance0.06418WCAG 2.x, 0 is black and 1 is white
Perceived brightness83 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.2:1
Contrast with white9.2:1WCAG normal text: AAA
Contrast with black2.28:1WCAG normal text: Fail
Greyscale equivalent#1E1E1E
Inverted#BFFF20

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004FE4no red cones; affects about 1% of men; ΔE 36.6 from the original
Deuteranopia#003FDCno green cones; the most common form, about 1% of men; ΔE 28.3 from the original
Tritanopia#005B82no blue cones; rare, and affects men and women equally; ΔE 103.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.2:1WCAG large text: AAA
Contrast with black, large text2.28:1WCAG large text: Fail

Named colours

Medium blue · ΔE 7.8Blue · ΔE 16.6Blue violet · ΔE 21.6Dark violet · ΔE 24.4Dark orchid · ΔE 35.9Dark blue · ΔE 36.3
Nearest named CSS colourMedium blue (#0000CD)ΔE 7.79, clearly different but related
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9FDF00
Analogous#0030DF, #B000DF
Triadic#DF4000, #00DF40
Split complementary#DFAF00, #30DF00
Tetradic#DF0030, #9FDF00, #00DFB0

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C4ACFF
Lighter +30%#9F79FF
Lighter +20%#7B46FF
Lighter +10%#5713FF
Darker −10%#3100AC
Darker −20%#230079
Darker −30%#140046
Darker −40%#050013
More saturated +25%#4000DF
Less saturated −25%#4C1CC3

Channel breakdown

R64
G0
B223
Red64 (25.1%)
Green0 (0%)
Blue223 (87.5%)
Hue257.22°
Saturation (HSL)100%
Lightness43.73%
Dominant channelBlue
Hex per channelR 40 · G 00 · B DF

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Every value on this page was computed from “4000df” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.