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Recognised as Colour

#3F8DDE

  • #3F8DDE
  • Blue
  • Dark
  • Nearest: Cornflower blue

#3F8DDE is a blue with RGB values 63, 141, 222 and HSL 211°, 71%, 56%. It is a dark colour, so black text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#3F8DDE#3F8DDE
HEX#3F8DDE
RGBrgb(63, 141, 222)
RGB (0–1)0.2471, 0.5529, 0.8706
RGB percentages24.7%, 55.3%, 87.1%
HSLhsl(210.6, 70.7%, 55.9%)
HSV / HSBhsv(210.6, 71.6%, 87.1%)
CMYK71.6%, 36.5%, 0%, 12.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,165,086
CSS custom property--colour: #3F8DDE;

Brightness & contrast

Relative luminance0.2538WCAG 2.x, 0 is black and 1 is white
Perceived brightness135.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.08:1
Contrast with white3.46:1WCAG normal text: Fail
Contrast with black6.08:1WCAG normal text: AA
Greyscale equivalent#828282
Inverted#C07221

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6892E1no red cones; affects about 1% of men; ΔE 7.3 from the original
Deuteranopia#5083DCno green cones; the most common form, about 1% of men; ΔE 8.6 from the original
Tritanopia#00A0ABno blue cones; rare, and affects men and women equally; ΔE 46.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.46:1WCAG large text: AA
Contrast with black, large text6.08:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 8Dodgerblue · ΔE 16.9Steel blue · ΔE 18.1Deep skyblue · ΔE 26Royal blue · ΔE 30.6Light skyblue · ΔE 32.7
Nearest named CSS colourCornflower blue (#6495ED)ΔE 8.05, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DE903F
Analogous#3FDDDE, #403FDE
Triadic#DE3F8D, #8DDE3F
Split complementary#DE403F, #DDDE3F
Tetradic#DE3FDD, #DE903F, #3FDE40

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EDF4FC
Lighter +30%#C2DBF4
Lighter +20%#96C1ED
Lighter +10%#6BA7E5
Darker −10%#2273C8
Darker −20%#1B5A9C
Darker −30%#134171
Darker −40%#0C2845
More saturated +25%#238CFA
Less saturated −25%#5B8EC2

Channel breakdown

R63
G141
B222
Red63 (24.7%)
Green141 (55.3%)
Blue222 (87.1%)
Hue210.57°
Saturation (HSL)70.67%
Lightness55.88%
Dominant channelBlue
Hex per channelR 3F · G 8D · B DE

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Every value on this page was computed from “3f8dde” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.