Recognised as Colour

#3700F3

#3700F3
Blue
Dark
Nearest: Blue

#3700F3 is a blue with RGB values 55, 0, 243 and HSL 254°, 100%, 48%. It is a dark colour, so white text on it reaches 8.5:1 contrast (AAA for normal text). The nearest named colour is Blue.

Colour values

#3700F3#3700F3

HEX#3700F3

RGBrgb(55, 0, 243)

RGB (0–1)0.2157, 0, 0.9529

RGB percentages21.6%, 0%, 95.3%

HSLhsl(253.6, 100%, 47.6%)

HSV / HSBhsv(253.6, 100%, 95.3%)

CMYK77.4%, 100%, 0%, 4.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,604,723

CSS custom property--colour: #3700F3;

Brightness & contrast

Relative luminance0.07283WCAG 2.x, 0 is black and 1 is white

Perceived brightness87.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 8.55:1

Contrast with white8.55:1WCAG normal text: AAA

Contrast with black2.46:1WCAG normal text: Fail

Greyscale equivalent#1D1D1D

Inverted#C8FF0C

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0056F8no red cones; affects about 1% of men; ΔE 39.2 from the original

Deuteranopia#0041F0no green cones; the most common form, about 1% of men; ΔE 27.4 from the original

Tritanopia#00658Eno blue cones; rare, and affects men and women equally; ΔE 112.1 from the original

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

Contrast with white, large text8.55:1WCAG large text: AAA

Contrast with black, large text2.46:1WCAG large text: Fail

Named colours

Blue · ΔE 7.4 Medium blue · ΔE 15.5 Blue violet · ΔE 28.7 Dark violet · ΔE 31.3 Dark orchid · ΔE 43.8 Dark blue · ΔE 45.3

Nearest named CSS colourBlue (#0000FF)ΔE 7.38, clearly different but related

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#BCF300

Analogous#0042F3, #B100F3

Triadic#F33700, #00F337

Split complementary#F3B100, #42F300

Tetradic#F30042, #BCF300, #00F3B0

Tints, shades & saturation

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

Lighter +40%#CEC0FF

Lighter +30%#A78DFF

Lighter +20%#7F5AFF

Lighter +10%#5827FF

Darker −10%#2B00C0

Darker −20%#20008D

Darker −30%#14005A

Darker −40%#090027

More saturated +25%#3700F3

Less saturated −25%#481ED5

Channel breakdown

R55

B243

Red55 (21.6%)

Green0 (0%)

Blue243 (95.3%)

Hue253.58°

Saturation (HSL)100%

Lightness47.65%

Dominant channelBlue

Hex per channelR 37 · G 00 · B F3

Keep nerding

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

#3700F3

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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