Colour

#040F19

#040F19
Blue
Dark
Nearest: Black

#040F19 is a blue with RGB values 4, 15, 25 and HSL 209°, 72%, 6%. It is a dark colour, so white text on it reaches 19.3:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#040F19#040F19

HEX#040F19

RGBrgb(4, 15, 25)

RGB (0–1)0.0157, 0.0588, 0.098

RGB percentages1.6%, 5.9%, 9.8%

HSLhsl(208.6, 72.4%, 5.7%)

HSV / HSBhsv(208.6, 84%, 9.8%)

CMYK84%, 40%, 0%, 90.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer266,009

CSS custom property--colour: #040F19;

Brightness & contrast

Relative luminance0.00438WCAG 2.x, 0 is black and 1 is white

Perceived brightness14.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 19.31:1

Contrast with white19.31:1WCAG normal text: AAA

Contrast with black1.09:1WCAG normal text: Fail

Greyscale equivalent#0D0D0D

Inverted#FBF0E6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0B0F19no red cones; affects about 1% of men; ΔE 2 from the original

Deuteranopia#080D19no green cones; the most common form, about 1% of men; ΔE 2.1 from the original

Tritanopia#001112no blue cones; rare, and affects men and women equally; ΔE 6.3 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text19.31:1WCAG large text: AAA

Contrast with black, large text1.09:1WCAG large text: Fail

Named colours

Black · ΔE 8.3 Dark slate grey · ΔE 29.6 Dim grey · ΔE 41.1 Slate grey · ΔE 49 Gray · ΔE 50.2 Dark slateblue · ΔE 51.5

Nearest named CSS colourBlack (#000000)ΔE 8.29, clearly different but related

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#190E04

Analogous#041918, #040519

Triadic#19040F, #0F1904

Split complementary#190404, #191804

Tetradic#190419, #190E04, #051904

Tints, shades & saturation

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

Lighter +40%#2079C9

Lighter +30%#195E9D

Lighter +20%#124471

Lighter +10%#0B2945

Darker −10%#000000

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#000F1D

Less saturated −25%#080F15

Channel breakdown

G15

B25

Red4 (1.6%)

Green15 (5.9%)

Blue25 (9.8%)

Hue208.57°

Saturation (HSL)72.41%

Lightness5.69%

Dominant channelBlue

Hex per channelR 04 · G 0F · B 19

Keep nerding

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

#040F19

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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