Colour

#042C59

#042C59
Blue
Dark
Nearest: Dark slateblue

#042C59 is a blue with RGB values 4, 44, 89 and HSL 212°, 91%, 18%. It is a dark colour, so white text on it reaches 13.9:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#042C59#042C59

HEX#042C59

RGBrgb(4, 44, 89)

RGB (0–1)0.0157, 0.1725, 0.349

RGB percentages1.6%, 17.3%, 34.9%

HSLhsl(211.8, 91.4%, 18.2%)

HSV / HSBhsv(211.8, 95.5%, 34.9%)

CMYK95.5%, 50.6%, 0%, 65.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer273,497

CSS custom property--colour: #042C59;

Brightness & contrast

Relative luminance0.02548WCAG 2.x, 0 is black and 1 is white

Perceived brightness45.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 13.91:1

Contrast with white13.91:1WCAG normal text: AAA

Contrast with black1.51:1WCAG normal text: Fail

Greyscale equivalent#272727

Inverted#FBD3A6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#12305Bno red cones; affects about 1% of men; ΔE 2.6 from the original

Deuteranopia#002958no green cones; the most common form, about 1% of men; ΔE 2.2 from the original

Tritanopia#00373Eno blue cones; rare, and affects men and women equally; ΔE 29.5 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text13.91:1WCAG large text: AAA

Contrast with black, large text1.51:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 26 Midnight blue · ΔE 31.6 Dark slate grey · ΔE 35.1 Steel blue · ΔE 35.9 Black · ΔE 36.3 Dim grey · ΔE 41

Nearest named CSS colourDark slateblue (#483D8B)ΔE 25.97, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#593104

Analogous#045759, #060459

Triadic#59042C, #2C5904

Split complementary#590604, #575904

Tetradic#590457, #593104, #045906

Tints, shades & saturation

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

Lighter +40%#338FF6

Lighter +30%#0B74EB

Lighter +20%#085CBB

Lighter +10%#06448A

Darker −10%#021428

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#002C5D

Less saturated −25%#102D4D

Channel breakdown

G44

B89

Red4 (1.6%)

Green44 (17.3%)

Blue89 (34.9%)

Hue211.76°

Saturation (HSL)91.4%

Lightness18.24%

Dominant channelBlue

Hex per channelR 04 · G 2C · B 59

Keep nerding

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

#042C59

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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