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Colour

#3F6CB6

  • #3F6CB6
  • Blue
  • Dark
  • Nearest: Cornflower blue

#3F6CB6 is a blue with RGB values 63, 108, 182 and HSL 217°, 49%, 48%. It is a dark colour, so white text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#3F6CB6#3F6CB6
HEX#3F6CB6
RGBrgb(63, 108, 182)
RGB (0–1)0.2471, 0.4235, 0.7137
RGB percentages24.7%, 42.4%, 71.4%
HSLhsl(217.3, 48.6%, 48%)
HSV / HSBhsv(217.3, 65.4%, 71.4%)
CMYK65.4%, 40.7%, 0%, 28.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,156,598
CSS custom property--colour: #3F6CB6;

Brightness & contrast

Relative luminance0.15159WCAG 2.x, 0 is black and 1 is white
Perceived brightness108.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.21:1
Contrast with white5.21:1WCAG normal text: AA
Contrast with black4.03:1WCAG normal text: Fail
Greyscale equivalent#686868
Inverted#C09349

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4B73B9no red cones; affects about 1% of men; ΔE 3.9 from the original
Deuteranopia#3967B4no green cones; the most common form, about 1% of men; ΔE 2.9 from the original
Tritanopia#007D88no blue cones; rare, and affects men and women equally; ΔE 44.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.21:1WCAG large text: AAA
Contrast with black, large text4.03:1WCAG large text: AA

Named colours

Cornflower blue · ΔE 17Steel blue · ΔE 18.4Dark slateblue · ΔE 23.1Dodgerblue · ΔE 23.8Royal blue · ΔE 27.8Medium purple · ΔE 30.3
Nearest named CSS colourCornflower blue (#6495ED)ΔE 17.01, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B6893F
Analogous#3FA8B6, #4E3FB6
Triadic#B63F6C, #6CB63F
Split complementary#B64E3F, #A7B63F
Tetradic#B63FA7, #B6893F, #3FB64E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D2DDEF
Lighter +30%#ACC0E2
Lighter +20%#86A4D5
Lighter +10%#6087C8
Darker −10%#325690
Darker −20%#253F6A
Darker −30%#182944
Darker −40%#0B121E
More saturated +25%#2065D5
Less saturated −25%#5E7397

Channel breakdown

R63
G108
B182
Red63 (24.7%)
Green108 (42.4%)
Blue182 (71.4%)
Hue217.31°
Saturation (HSL)48.57%
Lightness48.04%
Dominant channelBlue
Hex per channelR 3F · G 6C · B B6

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Every value on this page was computed from “3f6cb6” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.