Recognised as Colour

#AC577F

#AC577F
Red
Dark
Nearest: Pale violetred

#AC577F is a red with RGB values 172, 87, 127 and HSL 332°, 34%, 51%. It is a dark colour, so white text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Pale violetred.

Colour values

#AC577F#AC577F

HEX#AC577F

RGBrgb(172, 87, 127)

RGB (0–1)0.6745, 0.3412, 0.498

RGB percentages67.5%, 34.1%, 49.8%

HSLhsl(331.8, 33.9%, 50.8%)

HSV / HSBhsv(331.8, 49.4%, 67.5%)

CMYK0%, 49.4%, 26.2%, 32.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,294,591

CSS custom property--colour: #AC577F;

Brightness & contrast

Relative luminance0.17119WCAG 2.x, 0 is black and 1 is white

Perceived brightness123 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 4.75:1

Contrast with white4.75:1WCAG normal text: AA

Contrast with black4.42:1WCAG normal text: Fail

Greyscale equivalent#6C6C6C

Inverted#53A880

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#616A80no red cones; affects about 1% of men; ΔE 38.5 from the original

Deuteranopia#77797Dno green cones; the most common form, about 1% of men; ΔE 39.7 from the original

Tritanopia#B75466no blue cones; rare, and affects men and women equally; ΔE 15.9 from the original

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

Contrast with white, large text4.75:1WCAG large text: AAA

Contrast with black, large text4.42:1WCAG large text: AA

Named colours

Pale violetred · ΔE 15.2 Indian red · ΔE 29.5 Rosy brown · ΔE 30.1 Plum · ΔE 30.2 Hot pink · ΔE 30.3 Light coral · ΔE 31.7

Nearest named CSS colourPale violetred (#DB7093)ΔE 15.21, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#57AC84

Analogous#AC57AA, #AC5957

Triadic#7FAC57, #577FAC

Split complementary#57AC59, #57AAAC

Tetradic#AAAC57, #57AC84, #5957AC

Tints, shades & saturation

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

Lighter +40%#EFE0E7

Lighter +30%#DFBDCD

Lighter +20%#CE9BB3

Lighter +10%#BD7999

Darker −10%#8B4566

Darker −20%#69344D

Darker −30%#472334

Darker −40%#25121B

More saturated +25%#CB387D

Less saturated −25%#8D7681

Channel breakdown

R172

G87

B127

Red172 (67.5%)

Green87 (34.1%)

Blue127 (49.8%)

Hue331.76°

Saturation (HSL)33.86%

Lightness50.78%

Dominant channelRed

Hex per channelR AC · G 57 · B 7F

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Ac577F (chemical formula)

Formula
130,997.998 g/mol
578 atoms

Ac577F has a molar mass of 130,997.998 g/mol, made up of 578 atoms across 2 elements: 577 × Ac, 1 × F.

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Molar mass

Molar mass130,997.998 g/mol

Total atoms per molecule578

Distinct elements2

Mass of one molecule2.1752729 × 10^-19 g

Molecules per gram4.5971243 × 10^18

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

Ac100%

F0%

Actinium (Ac × 577)130,979 g/mol, 99.985%

Fluorine (F)18.998 g/mol, 0.015%

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