Recognised as Colour

#3F31BC

#3F31BC
Blue
Dark
Nearest: Dark blue

#3F31BC is a blue with RGB values 63, 49, 188 and HSL 246°, 59%, 46%. It is a dark colour, so white text on it reaches 8.8:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#3F31BC#3F31BC

HEX#3F31BC

RGBrgb(63, 49, 188)

RGB (0–1)0.2471, 0.1922, 0.7373

RGB percentages24.7%, 19.2%, 73.7%

HSLhsl(246, 58.6%, 46.5%)

HSV / HSBhsv(246, 73.9%, 73.7%)

CMYK66.5%, 73.9%, 0%, 26.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,141,500

CSS custom property--colour: #3F31BC;

Brightness & contrast

Relative luminance0.06884WCAG 2.x, 0 is black and 1 is white

Perceived brightness81.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 8.84:1

Contrast with white8.84:1WCAG normal text: AAA

Contrast with black2.38:1WCAG normal text: Fail

Greyscale equivalent#3E3E3E

Inverted#C0CE43

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0050C0no red cones; affects about 1% of men; ΔE 24 from the original

Deuteranopia#0044B9no green cones; the most common form, about 1% of men; ΔE 17.9 from the original

Tritanopia#005974no blue cones; rare, and affects men and women equally; ΔE 77.2 from the original

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

Contrast with white, large text8.84:1WCAG large text: AAA

Contrast with black, large text2.38:1WCAG large text: Fail

Named colours

Dark blue · ΔE 17.1 Navy · ΔE 19.5 Indigo · ΔE 20.9 Slate blue · ΔE 22 Medium slateblue · ΔE 22.2 Dark orchid · ΔE 23.7

Nearest named CSS colourDark blue (#00008B)ΔE 17.14, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#AEBC31

Analogous#3168BC, #8531BC

Triadic#BC3F31, #31BC3F

Split complementary#BC8531, #68BC31

Tetradic#BC3168, #AEBC31, #31BC85

Tints, shades & saturation

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

Lighter +40%#CCC8F1

Lighter +30%#A7A0E6

Lighter +20%#8177DC

Lighter +10%#5C4FD1

Darker −10%#312694

Darker −20%#241C6B

Darker −30%#161143

Darker −40%#09071A

More saturated +25%#2713DA

Less saturated −25%#574F9E

Channel breakdown

R63

G49

B188

Red63 (24.7%)

Green49 (19.2%)

Blue188 (73.7%)

Hue246.04°

Saturation (HSL)58.65%

Lightness46.47%

Dominant channelBlue

Hex per channelR 3F · G 31 · B BC

Keep nerding

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

#3F31BC

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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