Colour

#0540B8

#0540B8
Blue
Dark
Nearest: Slate blue

#0540B8 is a blue with RGB values 5, 64, 184 and HSL 220°, 95%, 37%. It is a dark colour, so white text on it reaches 8.6:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#0540B8#0540B8

HEX#0540B8

RGBrgb(5, 64, 184)

RGB (0–1)0.0196, 0.251, 0.7216

RGB percentages2%, 25.1%, 72.2%

HSLhsl(220.2, 94.7%, 37.1%)

HSV / HSBhsv(220.2, 97.3%, 72.2%)

CMYK97.3%, 65.2%, 0%, 27.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer344,248

CSS custom property--colour: #0540B8;

Brightness & contrast

Relative luminance0.0716WCAG 2.x, 0 is black and 1 is white

Perceived brightness79.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 8.64:1

Contrast with white8.64:1WCAG normal text: AAA

Contrast with black2.43:1WCAG normal text: Fail

Greyscale equivalent#3C3C3C

Inverted#FABF47

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0054BCno red cones; affects about 1% of men; ΔE 14.9 from the original

Deuteranopia#0044B6no green cones; the most common form, about 1% of men; ΔE 4.5 from the original

Tritanopia#006176no blue cones; rare, and affects men and women equally; ΔE 69 from the original

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

Contrast with white, large text8.64:1WCAG large text: AAA

Contrast with black, large text2.43:1WCAG large text: Fail

Named colours

Slate blue · ΔE 16.6 Royal blue · ΔE 17 Medium slateblue · ΔE 21.8 Rebecca purple · ΔE 22.5 Midnight blue · ΔE 24 Navy · ΔE 24.4

Nearest named CSS colourSlate blue (#6A5ACD)ΔE 16.55, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#B87D05

Analogous#059AB8, #2305B8

Triadic#B80540, #40B805

Split complementary#B82305, #9AB805

Tetradic#B8059A, #B87D05, #05B823

Tints, shades & saturation

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

Lighter +40%#8DB2FC

Lighter +30%#5B90FB

Lighter +20%#2A6EF9

Lighter +10%#0651EA

Darker −10%#042F86

Darker −20%#021D55

Darker −30%#010C23

Darker −40%#000000

More saturated +25%#003EBD

Less saturated −25%#1D48A0

Channel breakdown

G64

B184

Red5 (2%)

Green64 (25.1%)

Blue184 (72.2%)

Hue220.22°

Saturation (HSL)94.71%

Lightness37.06%

Dominant channelBlue

Hex per channelR 05 · G 40 · B B8

Keep nerding

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

#0540B8

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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