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Recognised as Colour

#3753F0

  • #3753F0
  • Blue
  • Dark
  • Nearest: Medium slateblue

#3753F0 is a blue with RGB values 55, 83, 240 and HSL 231°, 86%, 58%. It is a dark colour, so white text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#3753F0#3753F0
HEX#3753F0
RGBrgb(55, 83, 240)
RGB (0–1)0.2157, 0.3255, 0.9412
RGB percentages21.6%, 32.5%, 94.1%
HSLhsl(230.9, 86%, 57.8%)
HSV / HSBhsv(230.9, 77.1%, 94.1%)
CMYK77.1%, 65.4%, 0%, 5.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,625,968
CSS custom property--colour: #3753F0;

Brightness & contrast

Relative luminance0.1329WCAG 2.x, 0 is black and 1 is white
Perceived brightness107.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.74:1
Contrast with white5.74:1WCAG normal text: AA
Contrast with black3.66:1WCAG normal text: Fail
Greyscale equivalent#585858
Inverted#C8AC0F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#006FF5no red cones; affects about 1% of men; ΔE 20.9 from the original
Deuteranopia#005DEDno green cones; the most common form, about 1% of men; ΔE 10.6 from the original
Tritanopia#007D9Ano blue cones; rare, and affects men and women equally; ΔE 85.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.74:1WCAG large text: AAA
Contrast with black, large text3.66:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 18.5Royal blue · ΔE 24.5Slate blue · ΔE 25Blue violet · ΔE 26.5Dark orchid · ΔE 29.8Medium blue · ΔE 31.1
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 18.52, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F0D437
Analogous#37AFF0, #7837F0
Triadic#F03753, #53F037
Split complementary#F07737, #B0F037
Tetradic#F037AF, #F0D437, #37F077

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F5F6FE
Lighter +30%#C5CDFB
Lighter +20%#96A5F7
Lighter +10%#667CF4
Darker −10%#1131E3
Darker −20%#0D27B4
Darker −30%#0A1C84
Darker −40%#061255
More saturated +25%#2849FF
Less saturated −25%#5266D5

Channel breakdown

R55
G83
B240
Red55 (21.6%)
Green83 (32.5%)
Blue240 (94.1%)
Hue230.92°
Saturation (HSL)86.05%
Lightness57.84%
Dominant channelBlue
Hex per channelR 37 · G 53 · B F0

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Every value on this page was computed from “3753f0” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.