Recognised as Colour
#3745FF
- #3745FF
- Blue
- Dark
- Nearest: Medium blue
#3745FF is a blue with RGB values 55, 69, 255 and HSL 236°, 100%, 61%. It is a dark colour, so white text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Medium blue.
Colour values
#3745FF#3745FF
HEX#3745FF
RGBrgb(55, 69, 255)
RGB (0–1)0.2157, 0.2706, 1
RGB percentages21.6%, 27.1%, 100%
HSLhsl(235.8, 100%, 60.8%)
HSV / HSBhsv(235.8, 78.4%, 100%)
CMYK78.4%, 72.9%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,622,399
CSS custom property--colour: #3745FF;
Brightness & contrast
Relative luminance0.12288WCAG 2.x, 0 is black and 1 is white
Perceived brightness105.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.07:1
Contrast with white6.07:1WCAG normal text: AA
Contrast with black3.46:1WCAG normal text: Fail
Greyscale equivalent#4F4F4F
Inverted#C8BA00
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.07:1WCAG large text: AAA
Contrast with black, large text3.46:1WCAG large text: AA
Named colours
Hue familyblue
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#FFF137
Analogous#37A9FF, #8D37FF
Triadic#FF3745, #45FF37
Split complementary#FF8D37, #A9FF37
Tetradic#FF37A9, #FFF137, #37FF8D
Tints, shades & saturation
Channel breakdown
R55
G69
B255
Red55 (21.6%)
Green69 (27.1%)
Blue255 (100%)
Hue235.8°
Saturation (HSL)100%
Lightness60.78%
Dominant channelBlue
Hex per channelR 37 · G 45 · B FF
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