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Recognised as Colour

#3749EC

  • #3749EC
  • Blue
  • Dark
  • Nearest: Medium slateblue

#3749EC is a blue with RGB values 55, 73, 236 and HSL 234°, 83%, 57%. It is a dark colour, so white text on it reaches 6.3:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#3749EC#3749EC
HEX#3749EC
RGBrgb(55, 73, 236)
RGB (0–1)0.2157, 0.2863, 0.9255
RGB percentages21.6%, 28.6%, 92.5%
HSLhsl(234, 82.6%, 57.1%)
HSV / HSBhsv(234, 76.7%, 92.5%)
CMYK76.7%, 69.1%, 0%, 7.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,623,404
CSS custom property--colour: #3749EC;

Brightness & contrast

Relative luminance0.11633WCAG 2.x, 0 is black and 1 is white
Perceived brightness101.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.31:1
Contrast with white6.31:1WCAG normal text: AA
Contrast with black3.33:1WCAG normal text: Fail
Greyscale equivalent#515151
Inverted#C8B613

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0069F1no red cones; affects about 1% of men; ΔE 23.5 from the original
Deuteranopia#0057E9no green cones; the most common form, about 1% of men; ΔE 13.2 from the original
Tritanopia#007795no blue cones; rare, and affects men and women equally; ΔE 88.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.31:1WCAG large text: AAA
Contrast with black, large text3.33:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 22.6Blue violet · ΔE 22.8Medium blue · ΔE 25.5Dark orchid · ΔE 28.5Slate blue · ΔE 28.9Royal blue · ΔE 29.7
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 22.63, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#ECDA37
Analogous#37A4EC, #7F37EC
Triadic#EC3749, #49EC37
Split complementary#EC7F37, #A4EC37
Tetradic#EC37A4, #ECDA37, #37EC7F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F1F3FE
Lighter +30%#C3C8F9
Lighter +20%#949EF5
Lighter +10%#6673F0
Darker −10%#1529DB
Darker −20%#1020AD
Darker −30%#0C177E
Darker −40%#080F4F
More saturated +25%#243AFF
Less saturated −25%#525FD1

Channel breakdown

R55
G73
B236
Red55 (21.6%)
Green73 (28.6%)
Blue236 (92.5%)
Hue234.03°
Saturation (HSL)82.65%
Lightness57.06%
Dominant channelBlue
Hex per channelR 37 · G 49 · B EC

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Every value on this page was computed from “3749ec” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.