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Colour

#3F83E9

  • #3F83E9
  • Blue
  • Dark
  • Nearest: Dodgerblue

#3F83E9 is a blue with RGB values 63, 131, 233 and HSL 216°, 79%, 58%. It is a dark colour, so black text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#3F83E9#3F83E9
HEX#3F83E9
RGBrgb(63, 131, 233)
RGB (0–1)0.2471, 0.5137, 0.9137
RGB percentages24.7%, 51.4%, 91.4%
HSLhsl(216, 79.4%, 58%)
HSV / HSBhsv(216, 73%, 91.4%)
CMYK73%, 43.8%, 0%, 8.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,162,537
CSS custom property--colour: #3F83E9;

Brightness & contrast

Relative luminance0.23173WCAG 2.x, 0 is black and 1 is white
Perceived brightness132.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.63:1
Contrast with white3.73:1WCAG normal text: Fail
Contrast with black5.63:1WCAG normal text: AA
Greyscale equivalent#7C7C7C
Inverted#C07C16

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#508DEDno red cones; affects about 1% of men; ΔE 5.5 from the original
Deuteranopia#2E7DE7no green cones; the most common form, about 1% of men; ΔE 3.6 from the original
Tritanopia#009BABno blue cones; rare, and affects men and women equally; ΔE 57 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.73:1WCAG large text: AA
Contrast with black, large text5.63:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 7.5Cornflower blue · ΔE 11.3Royal blue · ΔE 17.2Medium purple · ΔE 25.3Slate blue · ΔE 25.4Medium slateblue · ΔE 29.5
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 7.46, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#E9A53F
Analogous#3FD8E9, #503FE9
Triadic#E93F83, #83E93F
Split complementary#E9503F, #D8E93F
Tetradic#E93FD8, #E9A53F, #3FE950

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F6F9FE
Lighter +30%#C8DCF9
Lighter +20%#9BBEF3
Lighter +10%#6DA1EE
Darker −10%#1967DC
Darker −20%#1452AE
Darker −30%#0F3C80
Darker −40%#092753
More saturated +25%#297FFF
Less saturated −25%#5A88CE

Channel breakdown

R63
G131
B233
Red63 (24.7%)
Green131 (51.4%)
Blue233 (91.4%)
Hue216°
Saturation (HSL)79.44%
Lightness58.04%
Dominant channelBlue
Hex per channelR 3F · G 83 · B E9

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Every value on this page was computed from “3f83e9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.