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Recognised as Colour

#3F82D9

  • #3F82D9
  • Blue
  • Dark
  • Nearest: Cornflower blue

#3F82D9 is a blue with RGB values 63, 130, 217 and HSL 214°, 67%, 55%. It is a dark colour, so black text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#3F82D9#3F82D9
HEX#3F82D9
RGBrgb(63, 130, 217)
RGB (0–1)0.2471, 0.5098, 0.851
RGB percentages24.7%, 51%, 85.1%
HSLhsl(213.9, 67%, 54.9%)
HSV / HSBhsv(213.9, 71%, 85.1%)
CMYK71%, 40.1%, 0%, 14.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,162,265
CSS custom property--colour: #3F82D9;

Brightness & contrast

Relative luminance0.22032WCAG 2.x, 0 is black and 1 is white
Perceived brightness128.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.41:1
Contrast with white3.88:1WCAG normal text: Fail
Contrast with black5.41:1WCAG normal text: AA
Greyscale equivalent#7A7A7A
Inverted#C07D26

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5989DCno red cones; affects about 1% of men; ΔE 4.9 from the original
Deuteranopia#417BD7no green cones; the most common form, about 1% of men; ΔE 4.8 from the original
Tritanopia#0096A3no blue cones; rare, and affects men and women equally; ΔE 49.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.88:1WCAG large text: AA
Contrast with black, large text5.41:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 8.2Dodgerblue · ΔE 13.9Steel blue · ΔE 22Royal blue · ΔE 24.5Medium purple · ΔE 29.3Slate blue · ΔE 30.6
Nearest named CSS colourCornflower blue (#6495ED)ΔE 8.19, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D9963F
Analogous#3FCFD9, #493FD9
Triadic#D93F82, #82D93F
Split complementary#D9493F, #CFD93F
Tetradic#D93FCF, #D9963F, #3FD949

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E9F1FB
Lighter +30%#BFD5F2
Lighter +20%#94B9EA
Lighter +10%#6A9EE1
Darker −10%#2669BF
Darker −20%#1D5195
Darker −30%#153A6A
Darker −40%#0D233F
More saturated +25%#227EF6
Less saturated −25%#5C86BC

Channel breakdown

R63
G130
B217
Red63 (24.7%)
Green130 (51%)
Blue217 (85.1%)
Hue213.9°
Saturation (HSL)66.96%
Lightness54.9%
Dominant channelBlue
Hex per channelR 3F · G 82 · B D9

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Every value on this page was computed from “3f82d9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.