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Recognised as Colour

#3707A1

  • #3707A1
  • Violet
  • Dark
  • Nearest: Dark blue

#3707A1 is a violet with RGB values 55, 7, 161 and HSL 259°, 92%, 33%. It is a dark colour, so white text on it reaches 12.3:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#3707A1#3707A1
HEX#3707A1
RGBrgb(55, 7, 161)
RGB (0–1)0.2157, 0.0275, 0.6314
RGB percentages21.6%, 2.7%, 63.1%
HSLhsl(258.7, 91.7%, 32.9%)
HSV / HSBhsv(258.7, 95.7%, 63.1%)
CMYK65.8%, 95.7%, 0%, 36.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,606,433
CSS custom property--colour: #3707A1;

Brightness & contrast

Relative luminance0.03537WCAG 2.x, 0 is black and 1 is white
Perceived brightness62.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.3:1
Contrast with white12.3:1WCAG normal text: AAA
Contrast with black1.71:1WCAG normal text: Fail
Greyscale equivalent#1C1C1C
Inverted#C8F85E

Colour vision & accessibility

Protanopia#0039A5no red cones; affects about 1% of men; ΔE 28.1 from the original
Deuteranopia#00309Fno green cones; the most common form, about 1% of men; ΔE 23.8 from the original
Tritanopia#00405Dno blue cones; rare, and affects men and women equally; ΔE 78.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text12.3:1WCAG large text: AAA
Contrast with black, large text1.71:1WCAG large text: Fail

Named colours

Nearest named CSS colourDark blue (#00008B)ΔE 9.15, clearly different but related
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#71A107
Analogous#0724A1, #8407A1
Triadic#A13707, #07A137
Split complementary#A18407, #24A107
Tetradic#A10724, #71A107, #07A184

Tints, shades & saturation

Lighter +40%#A27BF9
Lighter +30%#804AF7
Lighter +20%#5E19F5
Lighter +10%#4809D2
Darker −10%#260570
Darker −20%#16033F
Darker −30%#05010E
Darker −40%#000000
More saturated +25%#3400A8
Less saturated −25%#3F1C8C

Channel breakdown

R55
G7
B161
Red55 (21.6%)
Green7 (2.7%)
Blue161 (63.1%)
Hue258.7°
Saturation (HSL)91.67%
Lightness32.94%
Dominant channelBlue
Hex per channelR 37 · G 07 · B A1

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Every value on this page was computed from “3707a1” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.