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Recognised as Colour

#3F79DC

  • #3F79DC
  • Blue
  • Dark
  • Nearest: Dodgerblue

#3F79DC is a blue with RGB values 63, 121, 220 and HSL 218°, 69%, 55%. It is a dark colour, so black text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#3F79DC#3F79DC
HEX#3F79DC
RGBrgb(63, 121, 220)
RGB (0–1)0.2471, 0.4745, 0.8627
RGB percentages24.7%, 47.5%, 86.3%
HSLhsl(217.8, 69.2%, 55.5%)
HSV / HSBhsv(217.8, 71.4%, 86.3%)
CMYK71.4%, 45%, 0%, 13.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,159,964
CSS custom property--colour: #3F79DC;

Brightness & contrast

Relative luminance0.19899WCAG 2.x, 0 is black and 1 is white
Perceived brightness123.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.98:1
Contrast with white4.22:1WCAG normal text: Fail
Contrast with black4.98:1WCAG normal text: AA
Greyscale equivalent#747474
Inverted#C08623

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4783E0no red cones; affects about 1% of men; ΔE 5.7 from the original
Deuteranopia#2675DAno green cones; the most common form, about 1% of men; ΔE 3.1 from the original
Tritanopia#0090A0no blue cones; rare, and affects men and women equally; ΔE 55.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.22:1WCAG large text: AA
Contrast with black, large text4.98:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 11.3Cornflower blue · ΔE 13.2Royal blue · ΔE 15.6Slate blue · ΔE 22.8Medium purple · ΔE 23.7Dark slateblue · ΔE 27.9
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 11.33, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DCA23F
Analogous#3FC8DC, #533FDC
Triadic#DC3F79, #79DC3F
Split complementary#DC533F, #C8DC3F
Tetradic#DC3FC8, #DCA23F, #3FDC53

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ECF1FB
Lighter +30%#C0D3F4
Lighter +20%#95B5EC
Lighter +10%#6A97E4
Darker −10%#245FC4
Darker −20%#1C4A99
Darker −30%#14356E
Darker −40%#0C2043
More saturated +25%#2372F8
Less saturated −25%#5B80C0

Channel breakdown

R63
G121
B220
Red63 (24.7%)
Green121 (47.5%)
Blue220 (86.3%)
Hue217.83°
Saturation (HSL)69.16%
Lightness55.49%
Dominant channelBlue
Hex per channelR 3F · G 79 · B DC

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Every value on this page was computed from “3f79dc” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.