Recognised as Colour

#AC545C

#AC545C
Red
Dark
Nearest: Indian red

#AC545C is a red with RGB values 172, 84, 92 and HSL 355°, 35%, 50%. It is a dark colour, so white text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Indian red.

Colour values

#AC545C#AC545C

HEX#AC545C

RGBrgb(172, 84, 92)

RGB (0–1)0.6745, 0.3294, 0.3608

RGB percentages67.5%, 32.9%, 36.1%

HSLhsl(354.5, 34.6%, 50.2%)

HSV / HSBhsv(354.5, 51.2%, 67.5%)

CMYK0%, 51.2%, 46.5%, 32.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,293,788

CSS custom property--colour: #AC545C;

Brightness & contrast

Relative luminance0.15884WCAG 2.x, 0 is black and 1 is white

Perceived brightness118.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.03:1

Contrast with white5.03:1WCAG normal text: AA

Contrast with black4.18:1WCAG normal text: Fail

Greyscale equivalent#676767

Inverted#53ABA3

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#66645Cno red cones; affects about 1% of men; ΔE 38.5 from the original

Deuteranopia#7D765Ano green cones; the most common form, about 1% of men; ΔE 39.1 from the original

Tritanopia#BA4957no blue cones; rare, and affects men and women equally; ΔE 10.6 from the original

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

Contrast with white, large text5.03:1WCAG large text: AAA

Contrast with black, large text4.18:1WCAG large text: AA

Named colours

Indian red · ΔE 14.3 Pale violetred · ΔE 20.2 Light coral · ΔE 21.5 Brown · ΔE 24.2 Sienna · ΔE 24.6 Rosy brown · ΔE 26.5

Nearest named CSS colourIndian red (#CD5C5C)ΔE 14.27, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#54ACA4

Analogous#AC5488, #AC7854

Triadic#5CAC54, #545CAC

Split complementary#54AC78, #5488AC

Tetradic#88AC54, #54ACA4, #7854AC

Tints, shades & saturation

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

Lighter +40%#EFDDDF

Lighter +30%#DEBBBE

Lighter +20%#CD999D

Lighter +10%#BD767D

Darker −10%#8A4349

Darker −20%#683237

Darker −30%#452225

Darker −40%#231113

More saturated +25%#CC3442

Less saturated −25%#8C7476

Channel breakdown

R172

G84

B92

Red172 (67.5%)

Green84 (32.9%)

Blue92 (36.1%)

Hue354.55°

Saturation (HSL)34.65%

Lightness50.2%

Dominant channelRed

Hex per channelR AC · G 54 · B 5C

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Ac545C (chemical formula)

Formula
123,727.011 g/mol
546 atoms

Ac545C has a molar mass of 123,727.011 g/mol, made up of 546 atoms across 2 elements: 545 × Ac, 1 × C.

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Molar mass

Molar mass123,727.011 g/mol

Total atoms per molecule546

Distinct elements2

Mass of one molecule2.0545354 × 10^-19 g

Molecules per gram4.8672806 × 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%

C0%

Actinium (Ac × 545)123,715 g/mol, 99.99%

Carbon (C)12.011 g/mol, 0.01%

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