Colour

#040248

#040248
Blue
Dark
Nearest: Midnight blue

#040248 is a blue with RGB values 4, 2, 72 and HSL 242°, 95%, 15%. It is a dark colour, so white text on it reaches 19:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#040248#040248

HEX#040248

RGBrgb(4, 2, 72)

RGB (0–1)0.0157, 0.0078, 0.2824

RGB percentages1.6%, 0.8%, 28.2%

HSLhsl(241.7, 94.6%, 14.5%)

HSV / HSBhsv(241.7, 97.2%, 28.2%)

CMYK94.4%, 97.2%, 0%, 71.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer262,728

CSS custom property--colour: #040248;

Brightness & contrast

Relative luminance0.00537WCAG 2.x, 0 is black and 1 is white

Perceived brightness24.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 18.96:1

Contrast with white18.96:1WCAG normal text: AAA

Contrast with black1.11:1WCAG normal text: Fail

Greyscale equivalent#070707

Inverted#FBFDB7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#00144Ano red cones; affects about 1% of men; ΔE 12.4 from the original

Deuteranopia#000C47no green cones; the most common form, about 1% of men; ΔE 7.2 from the original

Tritanopia#001A27no blue cones; rare, and affects men and women equally; ΔE 43.5 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text18.96:1WCAG large text: AAA

Contrast with black, large text1.11:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 14.6 Dark slateblue · ΔE 26.1 Indigo · ΔE 31.1 Navy · ΔE 31.9 Rebecca purple · ΔE 32.4 Dark blue · ΔE 37.2

Nearest named CSS colourMidnight blue (#191970)ΔE 14.56, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#464802

Analogous#022348, #270248

Triadic#480402, #024804

Split complementary#482702, #234802

Tetradic#480223, #464802, #024827

Tints, shades & saturation

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

Lighter +40%#241DF9

Lighter +30%#0C06DD

Lighter +20%#0A05AB

Lighter +10%#07037A

Darker −10%#010116

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#02004A

Less saturated −25%#0D0B3F

Channel breakdown

B72

Red4 (1.6%)

Green2 (0.8%)

Blue72 (28.2%)

Hue241.71°

Saturation (HSL)94.59%

Lightness14.51%

Dominant channelBlue

Hex per channelR 04 · G 02 · B 48

Keep nerding

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#040248

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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