Colour

#18124B

#18124B
Blue
Dark
Nearest: Midnight blue

#18124B is a blue with RGB values 24, 18, 75 and HSL 246°, 61%, 18%. It is a dark colour, so white text on it reaches 17.1:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#18124B#18124B

HEX#18124B

RGBrgb(24, 18, 75)

RGB (0–1)0.0941, 0.0706, 0.2941

RGB percentages9.4%, 7.1%, 29.4%

HSLhsl(246.3, 61.3%, 18.2%)

HSV / HSBhsv(246.3, 76%, 29.4%)

CMYK68%, 76%, 0%, 70.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,577,547

CSS custom property--colour: #18124B;

Brightness & contrast

Relative luminance0.01135WCAG 2.x, 0 is black and 1 is white

Perceived brightness31.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 17.12:1

Contrast with white17.12:1WCAG normal text: AAA

Contrast with black1.23:1WCAG normal text: Fail

Greyscale equivalent#171717

Inverted#E7EDB4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#001E4Dno red cones; affects about 1% of men; ΔE 11.9 from the original

Deuteranopia#00194Ano green cones; the most common form, about 1% of men; ΔE 9 from the original

Tritanopia#00212Cno blue cones; rare, and affects men and women equally; ΔE 37.8 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text17.12:1WCAG large text: AAA

Contrast with black, large text1.23:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 18.8 Dark slateblue · ΔE 22.5 Rebecca purple · ΔE 33.2 Indigo · ΔE 36.4 Navy · ΔE 39.5 Purple · ΔE 41.5

Nearest named CSS colourMidnight blue (#191970)ΔE 18.77, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#454B12

Analogous#12294B, #34124B

Triadic#4B1812, #124B18

Split complementary#4B3512, #294B12

Tetradic#4B1229, #454B12, #124B34

Tints, shades & saturation

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

Lighter +40%#6153D6

Lighter +30%#3F30C6

Lighter +20%#32269D

Lighter +10%#251C74

Darker −10%#0B0822

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#0F0657

Less saturated −25%#211E3F

Channel breakdown

R24

G18

B75

Red24 (9.4%)

Green18 (7.1%)

Blue75 (29.4%)

Hue246.32°

Saturation (HSL)61.29%

Lightness18.24%

Dominant channelBlue

Hex per channelR 18 · G 12 · B 4B

Keep nerding

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#18124B

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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