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Recognised as Colour

#3F7FE1

  • #3F7FE1
  • Blue
  • Dark
  • Nearest: Dodgerblue

#3F7FE1 is a blue with RGB values 63, 127, 225 and HSL 216°, 73%, 56%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#3F7FE1#3F7FE1
HEX#3F7FE1
RGBrgb(63, 127, 225)
RGB (0–1)0.2471, 0.498, 0.8824
RGB percentages24.7%, 49.8%, 88.2%
HSLhsl(216.3, 73%, 56.5%)
HSV / HSBhsv(216.3, 72%, 88.2%)
CMYK72%, 43.6%, 0%, 11.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,161,505
CSS custom property--colour: #3F7FE1;

Brightness & contrast

Relative luminance0.21672WCAG 2.x, 0 is black and 1 is white
Perceived brightness128.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.33:1
Contrast with white3.94:1WCAG normal text: Fail
Contrast with black5.33:1WCAG normal text: AA
Greyscale equivalent#787878
Inverted#C0801E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4E88E5no red cones; affects about 1% of men; ΔE 4.8 from the original
Deuteranopia#3079DFno green cones; the most common form, about 1% of men; ΔE 3.6 from the original
Tritanopia#0096A5no blue cones; rare, and affects men and women equally; ΔE 55.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.94:1WCAG large text: AA
Contrast with black, large text5.33:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 9.7Cornflower blue · ΔE 10.9Royal blue · ΔE 17.8Medium purple · ΔE 25.2Slate blue · ΔE 25.3Steel blue · ΔE 28.8
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 9.73, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#E1A13F
Analogous#3FD0E1, #503FE1
Triadic#E13F7F, #7FE13F
Split complementary#E1503F, #D0E13F
Tetradic#E13FD0, #E1A13F, #3FE150

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EFF5FD
Lighter +30%#C3D7F6
Lighter +20%#97BAEF
Lighter +10%#6B9CE8
Darker −10%#2064CD
Darker −20%#194FA1
Darker −30%#123975
Darker −40%#0B2449
More saturated +25%#2379FD
Less saturated −25%#5B85C5

Channel breakdown

R63
G127
B225
Red63 (24.7%)
Green127 (49.8%)
Blue225 (88.2%)
Hue216.3°
Saturation (HSL)72.97%
Lightness56.47%
Dominant channelBlue
Hex per channelR 3F · G 7F · B E1

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Every value on this page was computed from “3f7fe1” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.