Colour

#0A042B

#0A042B
Blue
Dark
Nearest: Black

#0A042B is a blue with RGB values 10, 4, 43 and HSL 249°, 83%, 9%. It is a dark colour, so white text on it reaches 19.7:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#0A042B#0A042B

HEX#0A042B

RGBrgb(10, 4, 43)

RGB (0–1)0.0392, 0.0157, 0.1686

RGB percentages3.9%, 1.6%, 16.9%

HSLhsl(249.2, 83%, 9.2%)

HSV / HSBhsv(249.2, 90.7%, 16.9%)

CMYK76.7%, 90.7%, 0%, 83.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer656,427

CSS custom property--colour: #0A042B;

Brightness & contrast

Relative luminance0.00326WCAG 2.x, 0 is black and 1 is white

Perceived brightness15.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 19.72:1

Contrast with white19.72:1WCAG normal text: AAA

Contrast with black1.07:1WCAG normal text: Fail

Greyscale equivalent#080808

Inverted#F5FBD4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#000C2Cno red cones; affects about 1% of men; ΔE 5.6 from the original

Deuteranopia#00092Ano green cones; the most common form, about 1% of men; ΔE 5.2 from the original

Tritanopia#000E16no blue cones; rare, and affects men and women equally; ΔE 22.1 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text19.72:1WCAG large text: AAA

Contrast with black, large text1.07:1WCAG large text: Fail

Named colours

Black · ΔE 25.9 Midnight blue · ΔE 35.7 Dark slateblue · ΔE 36.7 Dark slate grey · ΔE 41.6 Dim grey · ΔE 48.8 Rebecca purple · ΔE 49.4

Nearest named CSS colourBlack (#000000)ΔE 25.93, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#252B04

Analogous#04112B, #1E042B

Triadic#2B0A04, #042B0A

Split complementary#2B1E04, #112B04

Tetradic#2B0411, #252B04, #042B1E

Tints, shades & saturation

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

Lighter +40%#3515E6

Lighter +30%#2B11B7

Lighter +20%#200D88

Lighter +10%#15085A

Darker −10%#000000

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#07002F

Less saturated −25%#0E0A25

Channel breakdown

R10

B43

Red10 (3.9%)

Green4 (1.6%)

Blue43 (16.9%)

Hue249.23°

Saturation (HSL)82.98%

Lightness9.22%

Dominant channelBlue

Hex per channelR 0A · G 04 · B 2B

Keep nerding

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

#0A042B

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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