Recognised as Colour

#042CA9

#042CA9
Blue
Dark
Nearest: Dark blue

#042CA9 is a blue with RGB values 4, 44, 169 and HSL 225°, 95%, 34%. It is a dark colour, so white text on it reaches 10.8:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#042CA9#042CA9

HEX#042CA9

RGBrgb(4, 44, 169)

RGB (0–1)0.0157, 0.1725, 0.6627

RGB percentages1.6%, 17.3%, 66.3%

HSLhsl(225.5, 95.4%, 33.9%)

HSV / HSBhsv(225.5, 97.6%, 66.3%)

CMYK97.6%, 74%, 0%, 33.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer273,577

CSS custom property--colour: #042CA9;

Brightness & contrast

Relative luminance0.04692WCAG 2.x, 0 is black and 1 is white

Perceived brightness66.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 10.83:1

Contrast with white10.83:1WCAG normal text: AAA

Contrast with black1.94:1WCAG normal text: Fail

Greyscale equivalent#2D2D2D

Inverted#FBD356

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0045ADno red cones; affects about 1% of men; ΔE 18.5 from the original

Deuteranopia#0035A7no green cones; the most common form, about 1% of men; ΔE 8.1 from the original

Tritanopia#005168no blue cones; rare, and affects men and women equally; ΔE 72 from the original

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

Contrast with white, large text10.83:1WCAG large text: AAA

Contrast with black, large text1.94:1WCAG large text: Fail

Named colours

Dark blue · ΔE 15.4 Navy · ΔE 15.5 Indigo · ΔE 20.2 Slate blue · ΔE 22.7 Rebecca purple · ΔE 22.9 Midnight blue · ΔE 23

Nearest named CSS colourDark blue (#00008B)ΔE 15.35, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#A98104

Analogous#047EA9, #2F04A9

Triadic#A9042C, #2CA904

Split complementary#A92E04, #7FA904

Tetradic#A9047E, #A98104, #04A92E

Tints, shades & saturation

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

Lighter +40%#7D9CFC

Lighter +30%#4B76FB

Lighter +20%#1950FA

Lighter +10%#0539DB

Darker −10%#031F77

Darker −20%#021245

Darker −30%#000514

Darker −40%#000000

More saturated +25%#002AAD

Less saturated −25%#1A3793

Channel breakdown

G44

B169

Red4 (1.6%)

Green44 (17.3%)

Blue169 (66.3%)

Hue225.45°

Saturation (HSL)95.38%

Lightness33.92%

Dominant channelBlue

Hex per channelR 04 · G 2C · B A9

Keep nerding

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

#042CA9

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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