Recognised as Colour

#3A78DB

#3A78DB
Blue
Dark
Nearest: Dodgerblue

#3A78DB is a blue with RGB values 58, 120, 219 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

#3A78DB#3A78DB

HEX#3A78DB

RGBrgb(58, 120, 219)

RGB (0–1)0.2275, 0.4706, 0.8588

RGB percentages22.7%, 47.1%, 85.9%

HSLhsl(216.9, 69.1%, 54.3%)

HSV / HSBhsv(216.9, 73.5%, 85.9%)

CMYK73.5%, 45.2%, 0%, 14.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,832,027

CSS custom property--colour: #3A78DB;

Brightness & contrast

Relative luminance0.19447WCAG 2.x, 0 is black and 1 is white

Perceived brightness122.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.89:1

Contrast with white4.3:1WCAG normal text: Fail

Contrast with black4.89:1WCAG normal text: AA

Greyscale equivalent#727272

Inverted#C58724

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

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

Deuteranopia#2273D9no green cones; the most common form, about 1% of men; ΔE 3.3 from the original

Tritanopia#008F9Fno blue cones; rare, and affects men and women equally; ΔE 55.7 from the original

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

Contrast with white, large text4.3:1WCAG large text: AA

Contrast with black, large text4.89:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 11.4 Cornflower blue · ΔE 13.6 Royal blue · ΔE 15.7 Slate blue · ΔE 23.1 Medium purple · ΔE 24.2 Dark slateblue · ΔE 27.8

Nearest named CSS colourDodgerblue (#1E90FF)ΔE 11.38, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#DB9D3A

Analogous#3AC8DB, #4D3ADB

Triadic#DB3A78, #78DB3A

Split complementary#DB4D3A, #C8DB3A

Tetradic#DB3AC8, #DB9D3A, #3ADB4D

Tints, shades & saturation

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

Lighter +40%#E6EEFB

Lighter +30%#BBD1F3

Lighter +20%#90B3EB

Lighter +10%#6596E3

Darker −10%#235FBF

Darker −20%#1B4A94

Darker −30%#133469

Darker −40%#0B1F3E

More saturated +25%#1D71F8

Less saturated −25%#577FBE

Channel breakdown

R58

G120

B219

Red58 (22.7%)

Green120 (47.1%)

Blue219 (85.9%)

Hue216.89°

Saturation (HSL)69.1%

Lightness54.31%

Dominant channelBlue

Hex per channelR 3A · G 78 · B DB

Keep nerding

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#3A78DB

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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