Colour

#37184B

#37184B
Violet
Dark
Nearest: Dark slateblue

#37184B is a violet with RGB values 55, 24, 75 and HSL 276°, 52%, 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

#37184B#37184B

HEX#37184B

RGBrgb(55, 24, 75)

RGB (0–1)0.2157, 0.0941, 0.2941

RGB percentages21.6%, 9.4%, 29.4%

HSLhsl(276.5, 51.5%, 19.4%)

HSV / HSBhsv(276.5, 68%, 29.4%)

CMYK26.7%, 68%, 0%, 70.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,610,699

CSS custom property--colour: #37184B;

Brightness & contrast

Relative luminance0.01973WCAG 2.x, 0 is black and 1 is white

Perceived brightness43.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 15.06:1

Contrast with white15.06:1WCAG normal text: AAA

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

Greyscale equivalent#222222

Inverted#C8E7B4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#03254Dno red cones; affects about 1% of men; ΔE 20 from the original

Deuteranopia#12274Ano green cones; the most common form, about 1% of men; ΔE 20.6 from the original

Tritanopia#34222Fno blue cones; rare, and affects men and women equally; ΔE 25.1 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text15.06:1WCAG large text: AAA

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

Named colours

Dark slateblue · ΔE 22.6 Midnight blue · ΔE 24.7 Rebecca purple · ΔE 32.6 Purple · ΔE 37.7 Indigo · ΔE 38.2 Black · ΔE 39.5

Nearest named CSS colourDark slateblue (#483D8B)ΔE 22.64, a distinctly different colour

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#2C4B18

Analogous#1E184B, #4B1845

Triadic#4B3718, #184B37

Split complementary#464B18, #184B1D

Tetradic#4B1D18, #2C4B18, #18454B

Tints, shades & saturation

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

Lighter +40%#A362CD

Lighter +30%#8C3DBF

Lighter +20%#703198

Lighter +10%#532472

Darker −10%#1B0C24

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#3A0C57

Less saturated −25%#34243F

Channel breakdown

R55

G24

B75

Red55 (21.6%)

Green24 (9.4%)

Blue75 (29.4%)

Hue276.47°

Saturation (HSL)51.52%

Lightness19.41%

Dominant channelBlue

Hex per channelR 37 · G 18 · B 4B

Keep nerding

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#37184B

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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