Colour

#18244A

#18244A
Blue
Dark
Nearest: Dark slateblue

#18244A is a blue with RGB values 24, 36, 74 and HSL 226°, 51%, 19%. It is a dark colour, so white text on it reaches 15.1:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#18244A#18244A

HEX#18244A

RGBrgb(24, 36, 74)

RGB (0–1)0.0941, 0.1412, 0.2902

RGB percentages9.4%, 14.1%, 29%

HSLhsl(225.6, 51%, 19.2%)

HSV / HSBhsv(225.6, 67.6%, 29%)

CMYK67.6%, 51.4%, 0%, 71%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,582,154

CSS custom property--colour: #18244A;

Brightness & contrast

Relative luminance0.0195WCAG 2.x, 0 is black and 1 is white

Perceived brightness39.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 15.11:1

Contrast with white15.11:1WCAG normal text: AAA

Contrast with black1.39:1WCAG normal text: Fail

Greyscale equivalent#242424

Inverted#E7DBB5

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#12294Bno red cones; affects about 1% of men; ΔE 5 from the original

Deuteranopia#0A2449no green cones; the most common form, about 1% of men; ΔE 3.1 from the original

Tritanopia#002D33no blue cones; rare, and affects men and women equally; ΔE 27 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text15.11:1WCAG large text: AAA

Contrast with black, large text1.39:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 28.7 Black · ΔE 30.8 Midnight blue · ΔE 33.4 Dark slate grey · ΔE 33.8 Dim grey · ΔE 39.6 Steel blue · ΔE 40

Nearest named CSS colourDark slateblue (#483D8B)ΔE 28.68, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#4A3E18

Analogous#183D4A, #25184A

Triadic#4A1824, #244A18

Split complementary#4A2518, #3D4A18

Tetradic#4A183D, #4A3E18, #184A25

Tints, shades & saturation

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

Lighter +40%#627BCC

Lighter +30%#3D5CBE

Lighter +20%#314997

Lighter +10%#243771

Darker −10%#0C1123

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#0C1E56

Less saturated −25%#242A3E

Channel breakdown

R24

G36

B74

Red24 (9.4%)

Green36 (14.1%)

Blue74 (29%)

Hue225.6°

Saturation (HSL)51.02%

Lightness19.22%

Dominant channelBlue

Hex per channelR 18 · G 24 · B 4A

Keep nerding

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#18244A

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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