Recognised as Colour
#3707AB
- #3707AB
- Violet
- Dark
- Nearest: Dark blue
#3707AB is a violet with RGB values 55, 7, 171 and HSL 258°, 92%, 35%. It is a dark colour, so white text on it reaches 11.8:1 contrast (AAA for normal text). The nearest named colour is Dark blue.
Colour values
#3707AB#3707AB
HEX#3707AB
RGBrgb(55, 7, 171)
RGB (0–1)0.2157, 0.0275, 0.6706
RGB percentages21.6%, 2.7%, 67.1%
HSLhsl(257.6, 92.1%, 34.9%)
HSV / HSBhsv(257.6, 95.9%, 67.1%)
CMYK67.8%, 95.9%, 0%, 32.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,606,443
CSS custom property--colour: #3707AB;
Brightness & contrast
Relative luminance0.03904WCAG 2.x, 0 is black and 1 is white
Perceived brightness65.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.79:1
Contrast with white11.79:1WCAG normal text: AAA
Contrast with black1.78:1WCAG normal text: Fail
Greyscale equivalent#1D1D1D
Inverted#C8F854
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.79:1WCAG large text: AAA
Contrast with black, large text1.78:1WCAG large text: Fail
Named colours
Hue familyviolet
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#7BAB07
Analogous#0729AB, #8907AB
Triadic#AB3707, #07AB37
Split complementary#AB8907, #29AB07
Tetradic#AB0729, #7BAB07, #07AB89
Tints, shades & saturation
Channel breakdown
R55
G7
B171
Red55 (21.6%)
Green7 (2.7%)
Blue171 (67.1%)
Hue257.56°
Saturation (HSL)92.13%
Lightness34.9%
Dominant channelBlue
Hex per channelR 37 · G 07 · B AB
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