Recognised as Colour

#0311BB

#0311BB
Blue
Dark
Nearest: Medium blue

#0311BB is a blue with RGB values 3, 17, 187 and HSL 235°, 97%, 37%. It is a dark colour, so white text on it reaches 11.7:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#0311BB#0311BB

HEX#0311BB

RGBrgb(3, 17, 187)

RGB (0–1)0.0118, 0.0667, 0.7333

RGB percentages1.2%, 6.7%, 73.3%

HSLhsl(235.4, 96.8%, 37.3%)

HSV / HSBhsv(235.4, 98.4%, 73.3%)

CMYK98.4%, 90.9%, 0%, 26.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer201,147

CSS custom property--colour: #0311BB;

Brightness & contrast

Relative luminance0.04008WCAG 2.x, 0 is black and 1 is white

Perceived brightness64.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 11.66:1

Contrast with white11.66:1WCAG normal text: AAA

Contrast with black1.8:1WCAG normal text: Fail

Greyscale equivalent#1A1A1A

Inverted#FCEE44

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0042BFno red cones; affects about 1% of men; ΔE 29.7 from the original

Deuteranopia#002EB8no green cones; the most common form, about 1% of men; ΔE 17.5 from the original

Tritanopia#004F6Eno blue cones; rare, and affects men and women equally; ΔE 89.9 from the original

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

Contrast with white, large text11.66:1WCAG large text: AAA

Contrast with black, large text1.8:1WCAG large text: Fail

Named colours

Medium blue · ΔE 12.2 Dark blue · ΔE 18.7 Blue violet · ΔE 23.2 Navy · ΔE 23.9 Dark violet · ΔE 27 Indigo · ΔE 30.7

Nearest named CSS colourMedium blue (#0000CD)ΔE 12.19, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#BBAD03

Analogous#036DBB, #5103BB

Triadic#BB0311, #11BB03

Split complementary#BB5103, #6DBB03

Tetradic#BB036D, #BBAD03, #03BB51

Tints, shades & saturation

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

Lighter +40%#8D95FD

Lighter +30%#5B67FC

Lighter +20%#2839FC

Lighter +10%#0416ED

Darker −10%#020C89

Darker −20%#010857

Darker −30%#010324

Darker −40%#000000

More saturated +25%#000EBE

Less saturated −25%#1B25A3

Channel breakdown

G17

B187

Red3 (1.2%)

Green17 (6.7%)

Blue187 (73.3%)

Hue235.43°

Saturation (HSL)96.84%

Lightness37.25%

Dominant channelBlue

Hex per channelR 03 · G 11 · B BB

Keep nerding

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

#0311BB

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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