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Recognised as Colour

#407DF3

  • #407DF3
  • Blue
  • Dark
  • Nearest: Royal blue

#407DF3 is a blue with RGB values 64, 125, 243 and HSL 220°, 88%, 60%. It is a dark colour, so black text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#407DF3#407DF3
HEX#407DF3
RGBrgb(64, 125, 243)
RGB (0–1)0.251, 0.4902, 0.9529
RGB percentages25.1%, 49%, 95.3%
HSLhsl(219.6, 88.2%, 60.2%)
HSV / HSBhsv(219.6, 73.7%, 95.3%)
CMYK73.7%, 48.6%, 0%, 4.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,226,547
CSS custom property--colour: #407DF3;

Brightness & contrast

Relative luminance0.22228WCAG 2.x, 0 is black and 1 is white
Perceived brightness130.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.45:1
Contrast with white3.86:1WCAG normal text: Fail
Contrast with black5.45:1WCAG normal text: AA
Greyscale equivalent#797979
Inverted#BF820C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#388AF7no red cones; affects about 1% of men; ΔE 8.9 from the original
Deuteranopia#007AF1no green cones; the most common form, about 1% of men; ΔE 4.4 from the original
Tritanopia#0099ACno blue cones; rare, and affects men and women equally; ΔE 65.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.86:1WCAG large text: AA
Contrast with black, large text5.45:1WCAG large text: AAA

Named colours

Royal blue · ΔE 8.9Dodgerblue · ΔE 11.5Slate blue · ΔE 19.6Cornflower blue · ΔE 20.5Medium slateblue · ΔE 21.1Medium purple · ΔE 22.4
Nearest named CSS colourRoyal blue (#4169E1)ΔE 8.9, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F3B640
Analogous#40D7F3, #5C40F3
Triadic#F3407D, #7DF340
Split complementary#F35C40, #D7F340
Tetradic#F340D7, #F3B640, #40F35C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#D0DFFC
Lighter +20%#A0BEF9
Lighter +10%#709EF6
Darker −10%#105CF0
Darker −20%#0C4AC1
Darker −30%#093791
Darker −40%#062561
More saturated +25%#3479FF
Less saturated −25%#5985DA

Channel breakdown

R64
G125
B243
Red64 (25.1%)
Green125 (49%)
Blue243 (95.3%)
Hue219.55°
Saturation (HSL)88.18%
Lightness60.2%
Dominant channelBlue
Hex per channelR 40 · G 7D · B F3

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Every value on this page was computed from “407df3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.