Recognised as Colour

#6440C5

#6440C5
Violet
Dark
Nearest: Slate blue

#6440C5 is a violet with RGB values 100, 64, 197 and HSL 256°, 53%, 51%. It is a dark colour, so white text on it reaches 6.8:1 contrast (AA for normal text). The nearest named colour is Slate blue.

Colour values

#6440C5#6440C5

HEX#6440C5

RGBrgb(100, 64, 197)

RGB (0–1)0.3922, 0.251, 0.7725

RGB percentages39.2%, 25.1%, 77.3%

HSLhsl(256.2, 53.4%, 51.2%)

HSV / HSBhsv(256.2, 67.5%, 77.3%)

CMYK49.2%, 67.5%, 0%, 22.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer6,570,181

CSS custom property--colour: #6440C5;

Brightness & contrast

Relative luminance0.10407WCAG 2.x, 0 is black and 1 is white

Perceived brightness99.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.81:1

Contrast with white6.81:1WCAG normal text: AA

Contrast with black3.08:1WCAG normal text: Fail

Greyscale equivalent#515151

Inverted#9BBF3A

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#005DC9no red cones; affects about 1% of men; ΔE 27.7 from the original

Deuteranopia#0058C2no green cones; the most common form, about 1% of men; ΔE 27.2 from the original

Tritanopia#43617Dno blue cones; rare, and affects men and women equally; ΔE 67.5 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text6.81:1WCAG large text: AAA

Contrast with black, large text3.08:1WCAG large text: AA

Named colours

Slate blue · ΔE 14.7 Medium slateblue · ΔE 15.1 Rebecca purple · ΔE 18.5 Dark orchid · ΔE 18.8 Indigo · ΔE 21.5 Royal blue · ΔE 23.1

Nearest named CSS colourSlate blue (#6A5ACD)ΔE 14.71, a distinctly different colour

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#A1C540

Analogous#405EC5, #A740C5

Triadic#C56440, #40C564

Split complementary#C5A740, #5EC540

Tetradic#C5405E, #A1C540, #40C5A7

Tints, shades & saturation

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

Lighter +40%#E3DCF5

Lighter +30%#C3B5E9

Lighter +20%#A38EDD

Lighter +10%#8467D1

Darker −10%#4F31A1

Darker −20%#3C257A

Darker −30%#291953

Darker −40%#160D2C

More saturated +25%#5621E4

Less saturated −25%#725FA6

Channel breakdown

R100

G64

B197

Red100 (39.2%)

Green64 (25.1%)

Blue197 (77.3%)

Hue256.24°

Saturation (HSL)53.41%

Lightness51.18%

Dominant channelBlue

Hex per channelR 64 · G 40 · B C5

Keep nerding

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

#6440C5

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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