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Colour

#3F4993

  • #3F4993
  • Blue
  • Dark
  • Nearest: Dark slateblue

#3F4993 is a blue with RGB values 63, 73, 147 and HSL 233°, 40%, 41%. It is a dark colour, so white text on it reaches 8.1:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#3F4993#3F4993
HEX#3F4993
RGBrgb(63, 73, 147)
RGB (0–1)0.2471, 0.2863, 0.5765
RGB percentages24.7%, 28.6%, 57.6%
HSLhsl(232.9, 40%, 41.2%)
HSV / HSBhsv(232.9, 57.1%, 57.6%)
CMYK57.1%, 50.3%, 0%, 42.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,147,603
CSS custom property--colour: #3F4993;

Brightness & contrast

Relative luminance0.07928WCAG 2.x, 0 is black and 1 is white
Perceived brightness82.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.12:1
Contrast with white8.12:1WCAG normal text: AAA
Contrast with black2.59:1WCAG normal text: Fail
Greyscale equivalent#4C4C4C
Inverted#C0B66C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#245396no red cones; affects about 1% of men; ΔE 10.5 from the original
Deuteranopia#184C91no green cones; the most common form, about 1% of men; ΔE 9.2 from the original
Tritanopia#105A67no blue cones; rare, and affects men and women equally; ΔE 45.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.12:1WCAG large text: AAA
Contrast with black, large text2.59:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 7.8Midnight blue · ΔE 23.3Rebecca purple · ΔE 24.6Slate blue · ΔE 25.9Royal blue · ΔE 28Medium purple · ΔE 28.8
Nearest named CSS colourDark slateblue (#483D8B)ΔE 7.81, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#93893F
Analogous#3F7393, #5F3F93
Triadic#933F49, #49933F
Split complementary#935F3F, #73933F
Tetradic#933F73, #93893F, #3F935F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BCC0E2
Lighter +30%#989FD3
Lighter +20%#747EC4
Lighter +10%#515DB4
Darker −10%#30376F
Darker −20%#20264C
Darker −30%#111428
Darker −40%#020204
More saturated +25%#2535AD
Less saturated −25%#595D79

Channel breakdown

R63
G73
B147
Red63 (24.7%)
Green73 (28.6%)
Blue147 (57.6%)
Hue232.86°
Saturation (HSL)40%
Lightness41.18%
Dominant channelBlue
Hex per channelR 3F · G 49 · B 93

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Every value on this page was computed from “3f4993” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.