Colour

#31183B

#31183B
Violet
Dark
Nearest: Black

#31183B is a violet with RGB values 49, 24, 59 and HSL 283°, 42%, 16%. It is a dark colour, so white text on it reaches 15.9:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#31183B#31183B

HEX#31183B

RGBrgb(49, 24, 59)

RGB (0–1)0.1922, 0.0941, 0.2314

RGB percentages19.2%, 9.4%, 23.1%

HSLhsl(282.9, 42.2%, 16.3%)

HSV / HSBhsv(282.9, 59.3%, 23.1%)

CMYK16.9%, 59.3%, 0%, 76.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,217,467

CSS custom property--colour: #31183B;

Brightness & contrast

Relative luminance0.01622WCAG 2.x, 0 is black and 1 is white

Perceived brightness38.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 15.86:1

Contrast with white15.86:1WCAG normal text: AAA

Contrast with black1.32:1WCAG normal text: Fail

Greyscale equivalent#202020

Inverted#CEE7C4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#10213Cno red cones; affects about 1% of men; ΔE 16.4 from the original

Deuteranopia#18233Ano green cones; the most common form, about 1% of men; ΔE 16.6 from the original

Tritanopia#301D26no blue cones; rare, and affects men and women equally; ΔE 17.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text15.86:1WCAG large text: AAA

Contrast with black, large text1.32:1WCAG large text: Fail

Named colours

Black · ΔE 29.7 Dark slateblue · ΔE 30.7 Midnight blue · ΔE 34.2 Dark slate grey · ΔE 38.8 Dim grey · ΔE 40.8 Rebecca purple · ΔE 42.3

Nearest named CSS colourBlack (#000000)ΔE 29.65, a distinctly different colour

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#223B18

Analogous#1F183B, #3B1833

Triadic#3B3118, #183B31

Split complementary#333B18, #183B20

Tetradic#3B2018, #223B18, #18333B

Tints, shades & saturation

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

Lighter +40%#A460BF

Lighter +30%#8B44A8

Lighter +20%#6D3584

Lighter +10%#4F275F

Darker −10%#130917

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#350E45

Less saturated −25%#2D2231

Channel breakdown

R49

G24

B59

Red49 (19.2%)

Green24 (9.4%)

Blue59 (23.1%)

Hue282.86°

Saturation (HSL)42.17%

Lightness16.27%

Dominant channelBlue

Hex per channelR 31 · G 18 · B 3B

Keep nerding

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

#31183B

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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