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Recognised as Colour

#3F7BED

  • #3F7BED
  • Blue
  • Dark
  • Nearest: Royal blue

#3F7BED is a blue with RGB values 63, 123, 237 and HSL 219°, 83%, 59%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#3F7BED#3F7BED
HEX#3F7BED
RGBrgb(63, 123, 237)
RGB (0–1)0.2471, 0.4824, 0.9294
RGB percentages24.7%, 48.2%, 92.9%
HSLhsl(219.3, 82.9%, 58.8%)
HSV / HSBhsv(219.3, 73.4%, 92.9%)
CMYK73.4%, 48.1%, 0%, 7.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,160,493
CSS custom property--colour: #3F7BED;

Brightness & contrast

Relative luminance0.21337WCAG 2.x, 0 is black and 1 is white
Perceived brightness128.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.27:1
Contrast with white3.99:1WCAG normal text: Fail
Contrast with black5.27:1WCAG normal text: AA
Greyscale equivalent#767676
Inverted#C08412

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3A88F1no red cones; affects about 1% of men; ΔE 8.8 from the original
Deuteranopia#0078EBno green cones; the most common form, about 1% of men; ΔE 4.4 from the original
Tritanopia#0096A9no blue cones; rare, and affects men and women equally; ΔE 63 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.99:1WCAG large text: AA
Contrast with black, large text5.27:1WCAG large text: AAA

Named colours

Royal blue · ΔE 9.3Dodgerblue · ΔE 10.9Cornflower blue · ΔE 19Slate blue · ΔE 19.5Medium purple · ΔE 22.1Medium slateblue · ΔE 22.1
Nearest named CSS colourRoyal blue (#4169E1)ΔE 9.29, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EDB13F
Analogous#3FD2ED, #5A3FED
Triadic#ED3F7B, #7BED3F
Split complementary#ED5A3F, #D2ED3F
Tetradic#ED3FD2, #EDB13F, #3FED5A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FAFBFE
Lighter +30%#CBDBFA
Lighter +20%#9CBBF6
Lighter +10%#6E9BF1
Darker −10%#155CE4
Darker −20%#114AB5
Darker −30%#0D3786
Darker −40%#082458
More saturated +25%#2D75FF
Less saturated −25%#5983D3

Channel breakdown

R63
G123
B237
Red63 (24.7%)
Green123 (48.2%)
Blue237 (92.9%)
Hue219.31°
Saturation (HSL)82.86%
Lightness58.82%
Dominant channelBlue
Hex per channelR 3F · G 7B · B ED

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Every value on this page was computed from “3f7bed” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.