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Recognised as Colour

#3F90FF

  • #3F90FF
  • Blue
  • Dark
  • Nearest: Dodgerblue

#3F90FF is a blue with RGB values 63, 144, 255 and HSL 215°, 100%, 62%. It is a dark colour, so black text on it reaches 6.6:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#3F90FF#3F90FF
HEX#3F90FF
RGBrgb(63, 144, 255)
RGB (0–1)0.2471, 0.5647, 1
RGB percentages24.7%, 56.5%, 100%
HSLhsl(214.7, 100%, 62.4%)
HSV / HSBhsv(214.7, 75.3%, 100%)
CMYK75.3%, 43.5%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,165,887
CSS custom property--colour: #3F90FF;

Brightness & contrast

Relative luminance0.28223WCAG 2.x, 0 is black and 1 is white
Perceived brightness144.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.64:1
Contrast with white3.16:1WCAG normal text: Fail
Contrast with black6.64:1WCAG normal text: AA
Greyscale equivalent#878787
Inverted#C06F00

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#579AFFno red cones; affects about 1% of men; ΔE 7.2 from the original
Deuteranopia#3189FDno green cones; the most common form, about 1% of men; ΔE 4.2 from the original
Tritanopia#00AABBno blue cones; rare, and affects men and women equally; ΔE 60.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.16:1WCAG large text: AA
Contrast with black, large text6.64:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 3.1Cornflower blue · ΔE 13.5Royal blue · ΔE 18.5Medium purple · ΔE 27.4Slate blue · ΔE 27.9Medium slateblue · ΔE 29.6
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 3.09, a close match
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FFAE3F
Analogous#3FF0FF, #4E3FFF
Triadic#FF3F90, #90FF3F
Split complementary#FF4E3F, #F0FF3F
Tetradic#FF3FF0, #FFAE3F, #3FFF4E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#D8E8FF
Lighter +20%#A5CBFF
Lighter +10%#72ADFF
Darker −10%#0C73FF
Darker −20%#005BD8
Darker −30%#0046A5
Darker −40%#003072
More saturated +25%#3F90FF
Less saturated −25%#5794E7

Channel breakdown

R63
G144
B255
Red63 (24.7%)
Green144 (56.5%)
Blue255 (100%)
Hue214.69°
Saturation (HSL)100%
Lightness62.35%
Dominant channelBlue
Hex per channelR 3F · G 90 · B FF

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Every value on this page was computed from “3f90ff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.