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Recognised as Colour

#3919BB

  • #3919BB
  • Blue
  • Dark
  • Nearest: Dark blue

#3919BB is a blue with RGB values 57, 25, 187 and HSL 252°, 76%, 42%. It is a dark colour, so white text on it reaches 10.3:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#3919BB#3919BB
HEX#3919BB
RGBrgb(57, 25, 187)
RGB (0–1)0.2235, 0.098, 0.7333
RGB percentages22.4%, 9.8%, 73.3%
HSLhsl(251.9, 76.4%, 41.6%)
HSV / HSBhsv(251.9, 86.6%, 73.3%)
CMYK69.5%, 86.6%, 0%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,742,139
CSS custom property--colour: #3919BB;

Brightness & contrast

Relative luminance0.05153WCAG 2.x, 0 is black and 1 is white
Perceived brightness73 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.34:1
Contrast with white10.34:1WCAG normal text: AAA
Contrast with black2.03:1WCAG normal text: Fail
Greyscale equivalent#2B2B2B
Inverted#C6E644

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0046BFno red cones; affects about 1% of men; ΔE 28.9 from the original
Deuteranopia#0039B8no green cones; the most common form, about 1% of men; ΔE 22 from the original
Tritanopia#004F6Fno blue cones; rare, and affects men and women equally; ΔE 84.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.34:1WCAG large text: AAA
Contrast with black, large text2.03:1WCAG large text: Fail

Named colours

Dark blue · ΔE 16.7Medium blue · ΔE 17.4Blue violet · ΔE 19.5Navy · ΔE 21.4Dark violet · ΔE 23.5Dark orchid · ΔE 24.7
Nearest named CSS colourDark blue (#00008B)ΔE 16.68, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9BBB19
Analogous#194ABB, #8A19BB
Triadic#BB3919, #19BB39
Split complementary#BB8A19, #4ABB19
Tetradic#BB194A, #9BBB19, #19BB8A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BAACF4
Lighter +30%#957FEE
Lighter +20%#7052E8
Lighter +10%#4A25E2
Darker −10%#2B138E
Darker −20%#1E0D61
Darker −30%#100734
Darker −40%#020107
More saturated +25%#2A00D4
Less saturated −25%#4934A1

Channel breakdown

R57
G25
B187
Red57 (22.4%)
Green25 (9.8%)
Blue187 (73.3%)
Hue251.85°
Saturation (HSL)76.42%
Lightness41.57%
Dominant channelBlue
Hex per channelR 39 · G 19 · B BB

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Every value on this page was computed from “3919bb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.