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Colour

#3681EA

  • #3681EA
  • Blue
  • Dark
  • Nearest: Dodgerblue

#3681EA is a blue with RGB values 54, 129, 234 and HSL 215°, 81%, 56%. It is a dark colour, so black text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#3681EA#3681EA
HEX#3681EA
RGBrgb(54, 129, 234)
RGB (0–1)0.2118, 0.5059, 0.9176
RGB percentages21.2%, 50.6%, 91.8%
HSLhsl(215, 81.1%, 56.5%)
HSV / HSBhsv(215, 76.9%, 91.8%)
CMYK76.9%, 44.9%, 0%, 8.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,572,202
CSS custom property--colour: #3681EA;

Brightness & contrast

Relative luminance0.22425WCAG 2.x, 0 is black and 1 is white
Perceived brightness129.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.49:1
Contrast with white3.83:1WCAG normal text: Fail
Contrast with black5.49:1WCAG normal text: AA
Greyscale equivalent#797979
Inverted#C97E15

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4A8BEEno red cones; affects about 1% of men; ΔE 5.6 from the original
Deuteranopia#217BE8no green cones; the most common form, about 1% of men; ΔE 3.6 from the original
Tritanopia#009AAAno blue cones; rare, and affects men and women equally; ΔE 58.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.83:1WCAG large text: AA
Contrast with black, large text5.49:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 7Cornflower blue · ΔE 13.3Royal blue · ΔE 15.7Slate blue · ΔE 24.6Medium purple · ΔE 25.4Medium slateblue · ΔE 28.5
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 6.99, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EA9F36
Analogous#36DBEA, #4536EA
Triadic#EA3681, #81EA36
Split complementary#EA4536, #DBEA36
Tetradic#EA36DB, #EA9F36, #36EA45

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EFF5FD
Lighter +30%#C1D8F8
Lighter +20%#92BBF4
Lighter +10%#649EEF
Darker −10%#1666D7
Darker −20%#1250A8
Darker −30%#0D3A7A
Darker −40%#08244C
More saturated +25%#217DFF
Less saturated −25%#5286CE

Channel breakdown

R54
G129
B234
Red54 (21.2%)
Green129 (50.6%)
Blue234 (91.8%)
Hue215°
Saturation (HSL)81.08%
Lightness56.47%
Dominant channelBlue
Hex per channelR 36 · G 81 · B EA

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Every value on this page was computed from “3681ea” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.