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Recognised as Colour

#6403B9

  • #6403B9
  • Violet
  • Dark
  • Nearest: Blue violet

#6403B9 is a violet with RGB values 100, 3, 185 and HSL 272°, 97%, 37%. It is a dark colour, so white text on it reaches 9.3:1 contrast (AAA for normal text). The nearest named colour is Blue violet.

Colour values

#6403B9#6403B9
HEX#6403B9
RGBrgb(100, 3, 185)
RGB (0–1)0.3922, 0.0118, 0.7255
RGB percentages39.2%, 1.2%, 72.5%
HSLhsl(272, 96.8%, 36.9%)
HSV / HSBhsv(272, 98.4%, 72.5%)
CMYK45.9%, 98.4%, 0%, 27.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,554,553
CSS custom property--colour: #6403B9;

Brightness & contrast

Relative luminance0.06277WCAG 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 9.31:1
Contrast with white9.31:1WCAG normal text: AAA
Contrast with black2.26:1WCAG normal text: Fail
Greyscale equivalent#252525
Inverted#9BFC46

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0047BDno red cones; affects about 1% of men; ΔE 36.3 from the original
Deuteranopia#0045B6no green cones; the most common form, about 1% of men; ΔE 38 from the original
Tritanopia#4C476Cno blue cones; rare, and affects men and women equally; ΔE 74.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.31:1WCAG large text: AAA
Contrast with black, large text2.26:1WCAG large text: Fail

Named colours

Blue violet · ΔE 13.4Dark violet · ΔE 14.3Dark orchid · ΔE 17.2Medium blue · ΔE 21.2Dark blue · ΔE 21.7Indigo · ΔE 24.5
Nearest named CSS colourBlue violet (#8A2BE2)ΔE 13.35, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#58B903
Analogous#0903B9, #B903B3
Triadic#B96403, #03B964
Split complementary#B3B903, #03B909
Tetradic#B90903, #58B903, #03B3B9

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C88BFD
Lighter +30%#B059FC
Lighter +20%#9827FB
Lighter +10%#7F04EB
Darker −10%#490287
Darker −20%#2E0155
Darker −30%#130122
Darker −40%#000000
More saturated +25%#6400BC
Less saturated −25%#621AA2

Channel breakdown

R100
G3
B185
Red100 (39.2%)
Green3 (1.2%)
Blue185 (72.5%)
Hue271.98°
Saturation (HSL)96.81%
Lightness36.86%
Dominant channelBlue
Hex per channelR 64 · G 03 · B B9

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Every value on this page was computed from “6403b9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.