Colour

#0053DB

#0053DB
Blue
Dark
Nearest: Royal blue

#0053DB is a blue with RGB values 0, 83, 219 and HSL 217°, 100%, 43%. It is a dark colour, so white text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#0053DB#0053DB

HEX#0053DB

RGBrgb(0, 83, 219)

RGB (0–1)0, 0.3255, 0.8588

RGB percentages0%, 32.5%, 85.9%

HSLhsl(217.3, 100%, 42.9%)

HSV / HSBhsv(217.3, 100%, 85.9%)

CMYK100%, 62.1%, 0%, 14.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer21,467

CSS custom property--colour: #0053DB;

Brightness & contrast

Relative luminance0.11301WCAG 2.x, 0 is black and 1 is white

Perceived brightness97.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.44:1

Contrast with white6.44:1WCAG normal text: AA

Contrast with black3.26:1WCAG normal text: Fail

Greyscale equivalent#4B4B4B

Inverted#FFAC24

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0068DFno red cones; affects about 1% of men; ΔE 15.3 from the original

Deuteranopia#0055D8no green cones; the most common form, about 1% of men; ΔE 3.3 from the original

Tritanopia#00778Fno blue cones; rare, and affects men and women equally; ΔE 75.4 from the original

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

Contrast with white, large text6.44:1WCAG large text: AAA

Contrast with black, large text3.26:1WCAG large text: AA

Named colours

Royal blue · ΔE 14.2 Medium slateblue · ΔE 16.9 Slate blue · ΔE 17.8 Medium purple · ΔE 28.8 Rebecca purple · ΔE 29.8 Dark blue · ΔE 30.9

Nearest named CSS colourRoyal blue (#4169E1)ΔE 14.17, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#DB8800

Analogous#00C1DB, #1A00DB

Triadic#DB0053, #53DB00

Split complementary#DB1A00, #C1DB00

Tetradic#DB00C1, #DB8800, #00DB1A

Tints, shades & saturation

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

Lighter +40%#A8C9FF

Lighter +30%#75A9FF

Lighter +20%#428AFF

Lighter +10%#0F6AFF

Darker −10%#0040A8

Darker −20%#002C75

Darker −30%#001942

Darker −40%#00060F

More saturated +25%#0053DB

Less saturated −25%#1B5AC0

Channel breakdown

G83

B219

Red0 (0%)

Green83 (32.5%)

Blue219 (85.9%)

Hue217.26°

Saturation (HSL)100%

Lightness42.94%

Dominant channelBlue

Hex per channelR 00 · G 53 · B DB

Keep nerding

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

#0053DB

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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