Colour

#001B79

#001B79
Blue
Dark
Nearest: Midnight blue

#001B79 is a blue with RGB values 0, 27, 121 and HSL 227°, 100%, 24%. It is a dark colour, so white text on it reaches 14.7:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#001B79#001B79

HEX#001B79

RGBrgb(0, 27, 121)

RGB (0–1)0, 0.1059, 0.4745

RGB percentages0%, 10.6%, 47.5%

HSLhsl(226.6, 100%, 23.7%)

HSV / HSBhsv(226.6, 100%, 47.5%)

CMYK100%, 77.7%, 0%, 52.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer7,033

CSS custom property--colour: #001B79;

Brightness & contrast

Relative luminance0.02164WCAG 2.x, 0 is black and 1 is white

Perceived brightness45.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 14.66:1

Contrast with white14.66:1WCAG normal text: AAA

Contrast with black1.43:1WCAG normal text: Fail

Greyscale equivalent#1C1C1C

Inverted#FFE486

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#002E7Cno red cones; affects about 1% of men; ΔE 14.8 from the original

Deuteranopia#002377no green cones; the most common form, about 1% of men; ΔE 7.7 from the original

Tritanopia#003748no blue cones; rare, and affects men and women equally; ΔE 57.6 from the original

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

Contrast with white, large text14.66:1WCAG large text: AAA

Contrast with black, large text1.43:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 5.1 Navy · ΔE 18.6 Indigo · ΔE 19.9 Dark slateblue · ΔE 20.2 Rebecca purple · ΔE 21.1 Dark blue · ΔE 23

Nearest named CSS colourMidnight blue (#191970)ΔE 5.12, clearly different but related

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#795E00

Analogous#005879, #210079

Triadic#79001B, #1B7900

Split complementary#792100, #587900

Tetradic#790058, #795E00, #007921

Tints, shades & saturation

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

Lighter +40%#466FFF

Lighter +30%#1348FF

Lighter +20%#0032DF

Lighter +10%#0026AC

Darker −10%#001046

Darker −20%#000413

Darker −30%#000000

Darker −40%#000000

More saturated +25%#001B79

Less saturated −25%#0F236A

Channel breakdown

G27

B121

Red0 (0%)

Green27 (10.6%)

Blue121 (47.5%)

Hue226.61°

Saturation (HSL)100%

Lightness23.73%

Dominant channelBlue

Hex per channelR 00 · G 1B · B 79

Keep nerding

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#001B79

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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