Colour

#0047DA

#0047DA
Blue
Dark
Nearest: Medium slateblue

#0047DA is a blue with RGB values 0, 71, 218 and HSL 220°, 100%, 43%. It is a dark colour, so white text on it reaches 7.2:1 contrast (AAA for normal text). The nearest named colour is Medium slateblue.

Colour values

#0047DA#0047DA

HEX#0047DA

RGBrgb(0, 71, 218)

RGB (0–1)0, 0.2784, 0.8549

RGB percentages0%, 27.8%, 85.5%

HSLhsl(220.5, 100%, 42.7%)

HSV / HSBhsv(220.5, 100%, 85.5%)

CMYK100%, 67.4%, 0%, 14.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer18,394

CSS custom property--colour: #0047DA;

Brightness & contrast

Relative luminance0.09568WCAG 2.x, 0 is black and 1 is white

Perceived brightness91.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.21:1

Contrast with white7.21:1WCAG normal text: AAA

Contrast with black2.91:1WCAG normal text: Fail

Greyscale equivalent#434343

Inverted#FFB825

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0061DFno red cones; affects about 1% of men; ΔE 18.6 from the original

Deuteranopia#004ED7no green cones; the most common form, about 1% of men; ΔE 7.1 from the original

Tritanopia#00708Bno blue cones; rare, and affects men and women equally; ΔE 81 from the original

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

Contrast with white, large text7.21:1WCAG large text: AAA

Contrast with black, large text2.91:1WCAG large text: Fail

Named colours

Medium slateblue · ΔE 20.3 Royal blue · ΔE 22.8 Slate blue · ΔE 23.3 Dark blue · ΔE 26.3 Navy · ΔE 28.7 Blue violet · ΔE 29.7

Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 20.3, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#DA9300

Analogous#00B4DA, #2600DA

Triadic#DA0047, #47DA00

Split complementary#DA2600, #B4DA00

Tetradic#DA00B4, #DA9300, #00DA26

Tints, shades & saturation

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

Lighter +40%#A7C4FF

Lighter +30%#74A1FF

Lighter +20%#417FFF

Lighter +10%#0E5CFF

Darker −10%#0036A7

Darker −20%#002674

Darker −30%#001541

Darker −40%#00050E

More saturated +25%#0047DA

Less saturated −25%#1B50BF

Channel breakdown

G71

B218

Red0 (0%)

Green71 (27.8%)

Blue218 (85.5%)

Hue220.46°

Saturation (HSL)100%

Lightness42.75%

Dominant channelBlue

Hex per channelR 00 · G 47 · B DA

Keep nerding

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#0047DA

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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