Recognised as Colour

#AC19CD

#AC19CD
Violet
Dark
Nearest: Dark orchid

#AC19CD is a violet with RGB values 172, 25, 205 and HSL 289°, 78%, 45%. It is a dark colour, so white text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Dark orchid.

Colour values

#AC19CD#AC19CD

HEX#AC19CD

RGBrgb(172, 25, 205)

RGB (0–1)0.6745, 0.098, 0.8039

RGB percentages67.5%, 9.8%, 80.4%

HSLhsl(289, 78.3%, 45.1%)

HSV / HSBhsv(289, 87.8%, 80.4%)

CMYK16.1%, 87.8%, 0%, 19.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,278,797

CSS custom property--colour: #AC19CD;

Brightness & contrast

Relative luminance0.13874WCAG 2.x, 0 is black and 1 is white

Perceived brightness118.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.56:1

Contrast with white5.56:1WCAG normal text: AA

Contrast with black3.77:1WCAG normal text: Fail

Greyscale equivalent#454545

Inverted#53E632

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#005FD1no red cones; affects about 1% of men; ΔE 53.8 from the original

Deuteranopia#276CC9no green cones; the most common form, about 1% of men; ΔE 63.2 from the original

Tritanopia#AB497Ano blue cones; rare, and affects men and women equally; ΔE 59.5 from the original

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

Contrast with white, large text5.56:1WCAG large text: AAA

Contrast with black, large text3.77:1WCAG large text: AA

Named colours

Dark orchid · ΔE 10.2 Dark violet · ΔE 11.8 Blue violet · ΔE 16.4 Medium orchid · ΔE 22.4 Dark magenta · ΔE 26.9 Fuchsia · ΔE 28.1

Nearest named CSS colourDark orchid (#9932CC)ΔE 10.23, a distinctly different colour

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3ACD19

Analogous#5219CD, #CD1994

Triadic#CDAC19, #19CDAC

Split complementary#94CD19, #19CD52

Tetradic#CD5219, #3ACD19, #1994CD

Tints, shades & saturation

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

Lighter +40%#ECBBF7

Lighter +30%#DF8EF1

Lighter +20%#D260EC

Lighter +10%#C533E6

Darker −10%#8613A0

Darker −20%#600E72

Darker −30%#3A0845

Darker −40%#130317

More saturated +25%#BC00E6

Less saturated −25%#9A36B0

Channel breakdown

R172

G25

B205

Red172 (67.5%)

Green25 (9.8%)

Blue205 (80.4%)

Hue289°

Saturation (HSL)78.26%

Lightness45.1%

Dominant channelBlue

Hex per channelR AC · G 19 · B CD

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Ac19Cd (chemical formula)

Formula
4,425.41 g/mol
20 atoms

Ac19Cd has a molar mass of 4,425.41 g/mol, made up of 20 atoms across 2 elements: 19 × Ac, 1 × Cd.

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Molar mass

Molar mass4,425.41 g/mol

Total atoms per molecule20

Distinct elements2

Mass of one molecule7.3485662 × 10^-21 g

Molecules per gram1.3608097 × 10^20

Name

NameNot in the name tablea name cannot be worked out from a formula alone: isomers share formulas, and naming depends on bonding the formula does not show

Composition by mass

Ac97.5%

Cd2.5%

Actinium (Ac × 19)4,313 g/mol, 97.46%

Cadmium (Cd)112.41 g/mol, 2.54%

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Elements in this formula

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