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Recognised as Colour

#3F48DE

  • #3F48DE
  • Blue
  • Dark
  • Nearest: Medium slateblue

#3F48DE is a blue with RGB values 63, 72, 222 and HSL 237°, 71%, 56%. It is a dark colour, so white text on it reaches 6.6:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#3F48DE#3F48DE
HEX#3F48DE
RGBrgb(63, 72, 222)
RGB (0–1)0.2471, 0.2824, 0.8706
RGB percentages24.7%, 28.2%, 87.1%
HSLhsl(236.6, 70.7%, 55.9%)
HSV / HSBhsv(236.6, 71.6%, 87.1%)
CMYK71.6%, 67.6%, 0%, 12.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,147,422
CSS custom property--colour: #3F48DE;

Brightness & contrast

Relative luminance0.10965WCAG 2.x, 0 is black and 1 is white
Perceived brightness99.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.58:1
Contrast with white6.58:1WCAG normal text: AA
Contrast with black3.19:1WCAG normal text: Fail
Greyscale equivalent#515151
Inverted#C0B721

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0065E3no red cones; affects about 1% of men; ΔE 22.2 from the original
Deuteranopia#0056DBno green cones; the most common form, about 1% of men; ΔE 14.3 from the original
Tritanopia#00718Dno blue cones; rare, and affects men and women equally; ΔE 82.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.58:1WCAG large text: AAA
Contrast with black, large text3.19:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 17.8Slate blue · ΔE 22.3Royal blue · ΔE 24Blue violet · ΔE 24.7Dark orchid · ΔE 26.4Dark blue · ΔE 26.6
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 17.78, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DED53F
Analogous#3F98DE, #853FDE
Triadic#DE3F48, #48DE3F
Split complementary#DE853F, #98DE3F
Tetradic#DE3F98, #DED53F, #3FDE85

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EDEEFC
Lighter +30%#C2C4F4
Lighter +20%#969BED
Lighter +10%#6B71E5
Darker −10%#222CC8
Darker −20%#1B229C
Darker −30%#131971
Darker −40%#0C0F45
More saturated +25%#232FFA
Less saturated −25%#5B61C2

Channel breakdown

R63
G72
B222
Red63 (24.7%)
Green72 (28.2%)
Blue222 (87.1%)
Hue236.6°
Saturation (HSL)70.67%
Lightness55.88%
Dominant channelBlue
Hex per channelR 3F · G 48 · B DE

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Every value on this page was computed from “3f48de” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.