Colour

#00042B

#00042B
Blue
Dark
Nearest: Black

#00042B is a blue with RGB values 0, 4, 43 and HSL 234°, 100%, 8%. It is a dark colour, so white text on it reaches 20:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#00042B#00042B

HEX#00042B

RGBrgb(0, 4, 43)

RGB (0–1)0, 0.0157, 0.1686

RGB percentages0%, 1.6%, 16.9%

HSLhsl(234.4, 100%, 8.4%)

HSV / HSBhsv(234.4, 100%, 16.9%)

CMYK100%, 90.7%, 0%, 83.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,067

CSS custom property--colour: #00042B;

Brightness & contrast

Relative luminance0.00261WCAG 2.x, 0 is black and 1 is white

Perceived brightness14.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 19.96:1

Contrast with white19.96:1WCAG normal text: AAA

Contrast with black1.05:1WCAG normal text: Fail

Greyscale equivalent#060606

Inverted#FFFBD4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#000B2Cno red cones; affects about 1% of men; ΔE 3.1 from the original

Deuteranopia#00062Ano green cones; the most common form, about 1% of men; ΔE 1.8 from the original

Tritanopia#000F16no blue cones; rare, and affects men and women equally; ΔE 21.9 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text19.96:1WCAG large text: AAA

Contrast with black, large text1.05:1WCAG large text: Fail

Named colours

Black · ΔE 25.6 Midnight blue · ΔE 36.7 Dark slateblue · ΔE 37.7 Dark slate grey · ΔE 41 Dim grey · ΔE 49.2 Rebecca purple · ΔE 51

Nearest named CSS colourBlack (#000000)ΔE 25.64, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#2B2700

Analogous#00192B, #12002B

Triadic#2B0004, #042B00

Split complementary#2B1200, #192B00

Tetradic#2B0019, #2B2700, #002B12

Tints, shades & saturation

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

Lighter +40%#0017F7

Lighter +30%#0012C4

Lighter +20%#000D91

Lighter +10%#00095E

Darker −10%#000000

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#00042B

Less saturated −25%#050826

Channel breakdown

B43

Red0 (0%)

Green4 (1.6%)

Blue43 (16.9%)

Hue234.42°

Saturation (HSL)100%

Lightness8.43%

Dominant channelBlue

Hex per channelR 00 · G 04 · B 2B

Keep nerding

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

#00042B

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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