Colour

#001F68

#001F68
Blue
Dark
Nearest: Midnight blue

#001F68 is a blue with RGB values 0, 31, 104 and HSL 222°, 100%, 20%. It is a dark colour, so white text on it reaches 15:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#001F68#001F68

HEX#001F68

RGBrgb(0, 31, 104)

RGB (0–1)0, 0.1216, 0.4078

RGB percentages0%, 12.2%, 40.8%

HSLhsl(222.1, 100%, 20.4%)

HSV / HSBhsv(222.1, 100%, 40.8%)

CMYK100%, 70.2%, 0%, 59.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer8,040

CSS custom property--colour: #001F68;

Brightness & contrast

Relative luminance0.01979WCAG 2.x, 0 is black and 1 is white

Perceived brightness42.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 15.04:1

Contrast with white15.04:1WCAG normal text: AAA

Contrast with black1.4:1WCAG normal text: Fail

Greyscale equivalent#1E1E1E

Inverted#FFE097

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#002B6Ano red cones; affects about 1% of men; ΔE 10 from the original

Deuteranopia#002267no green cones; the most common form, about 1% of men; ΔE 3.3 from the original

Tritanopia#003340no blue cones; rare, and affects men and women equally; ΔE 46.3 from the original

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

Contrast with white, large text15.04:1WCAG large text: AAA

Contrast with black, large text1.4:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 10.2 Dark slateblue · ΔE 16.1 Rebecca purple · ΔE 26.9 Indigo · ΔE 30.7 Navy · ΔE 31.8 Slate blue · ΔE 35.2

Nearest named CSS colourMidnight blue (#191970)ΔE 10.17, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#684900

Analogous#005368, #150068

Triadic#68001F, #1F6800

Split complementary#681500, #536800

Tetradic#680053, #684900, #006815

Tints, shades & saturation

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

Lighter +40%#3571FF

Lighter +30%#024DFF

Lighter +20%#003DCE

Lighter +10%#002E9B

Darker −10%#001035

Darker −20%#000102

Darker −30%#000000

Darker −40%#000000

More saturated +25%#001F68

Less saturated −25%#0D245B

Channel breakdown

G31

B104

Red0 (0%)

Green31 (12.2%)

Blue104 (40.8%)

Hue222.12°

Saturation (HSL)100%

Lightness20.39%

Dominant channelBlue

Hex per channelR 00 · G 1F · B 68

Keep nerding

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#001F68

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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