Recognised as Colour

#3978DA

#3978DA
Blue
Dark
Nearest: Dodgerblue

#3978DA is a blue with RGB values 57, 120, 218 and HSL 217°, 69%, 54%. It is a dark colour, so black text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#3978DA#3978DA

HEX#3978DA

RGBrgb(57, 120, 218)

RGB (0–1)0.2235, 0.4706, 0.8549

RGB percentages22.4%, 47.1%, 85.5%

HSLhsl(216.5, 68.5%, 53.9%)

HSV / HSBhsv(216.5, 73.9%, 85.5%)

CMYK73.9%, 45%, 0%, 14.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,766,490

CSS custom property--colour: #3978DA;

Brightness & contrast

Relative luminance0.19365WCAG 2.x, 0 is black and 1 is white

Perceived brightness121.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.87:1

Contrast with white4.31:1WCAG normal text: Fail

Contrast with black4.87:1WCAG normal text: AA

Greyscale equivalent#727272

Inverted#C68725

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4582DEno red cones; affects about 1% of men; ΔE 5.7 from the original

Deuteranopia#2373D8no green cones; the most common form, about 1% of men; ΔE 3.2 from the original

Tritanopia#008F9Eno blue cones; rare, and affects men and women equally; ΔE 55.6 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text4.31:1WCAG large text: AA

Contrast with black, large text4.87:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 11.5 Cornflower blue · ΔE 13.3 Royal blue · ΔE 16.3 Slate blue · ΔE 23.6 Medium purple · ΔE 24.6 Dark slateblue · ΔE 27.7

Nearest named CSS colourDodgerblue (#1E90FF)ΔE 11.55, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#DA9B39

Analogous#39C9DA, #4A39DA

Triadic#DA3978, #78DA39

Split complementary#DA4A39, #C9DA39

Tetradic#DA39C9, #DA9B39, #39DA4A

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#E5EDFA

Lighter +30%#BAD0F2

Lighter +20%#8FB3EA

Lighter +10%#6495E2

Darker −10%#235FBD

Darker −20%#1B4A92

Darker −30%#133467

Darker −40%#0B1E3C

More saturated +25%#1C72F7

Less saturated −25%#567EBD

Channel breakdown

R57

G120

B218

Red57 (22.4%)

Green120 (47.1%)

Blue218 (85.5%)

Hue216.52°

Saturation (HSL)68.51%

Lightness53.92%

Dominant channelBlue

Hex per channelR 39 · G 78 · B DA

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#3978DA

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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