Recognised as Colour

#AC8680

#AC8680
Red
Dark
Nearest: Rosy brown

#AC8680 is a red with RGB values 172, 134, 128 and HSL 8°, 21%, 59%. It is a dark colour, so black text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Rosy brown.

Colour values

#AC8680#AC8680

HEX#AC8680

RGBrgb(172, 134, 128)

RGB (0–1)0.6745, 0.5255, 0.502

RGB percentages67.5%, 52.5%, 50.2%

HSLhsl(8.2, 21%, 58.8%)

HSV / HSBhsv(8.2, 25.6%, 67.5%)

CMYK0%, 22.1%, 25.6%, 32.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,306,624

CSS custom property--colour: #AC8680;

Brightness & contrast

Relative luminance0.27379WCAG 2.x, 0 is black and 1 is white

Perceived brightness145.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.48:1

Contrast with white3.24:1WCAG normal text: Fail

Contrast with black6.48:1WCAG normal text: AA

Greyscale equivalent#8E8E8E

Inverted#53797F

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#8E8A7Fno red cones; affects about 1% of men; ΔE 14.5 from the original

Deuteranopia#979280no green cones; the most common form, about 1% of men; ΔE 15.1 from the original

Tritanopia#B58284no blue cones; rare, and affects men and women equally; ΔE 6.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text3.24:1WCAG large text: AA

Contrast with black, large text6.48:1WCAG large text: AAA

Named colours

Rosy brown · ΔE 5.9 Gray · ΔE 17.2 Dark grey · ΔE 19 Dim grey · ΔE 22 Tan · ΔE 23.7 Silver · ΔE 24.5

Nearest named CSS colourRosy brown (#BC8F8F)ΔE 5.9, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#80A6AC

Analogous#AC8090, #AC9C80

Triadic#80AC86, #8680AC

Split complementary#80AC9C, #8090AC

Tetradic#90AC80, #80A6AC, #9C80AC

Tints, shades & saturation

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

Lighter +40%#FDFCFB

Lighter +30%#E8DEDD

Lighter +20%#D4C1BE

Lighter +10%#C0A39F

Darker −10%#976A62

Darker −20%#78544E

Darker −30%#593E3A

Darker −40%#3A2926

More saturated +25%#C67366

Less saturated −25%#969696

Channel breakdown

R172

G134

B128

Red172 (67.5%)

Green134 (52.5%)

Blue128 (50.2%)

Hue8.18°

Saturation (HSL)20.95%

Lightness58.82%

Dominant channelRed

Hex per channelR AC · G 86 · B 80

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Ac8680 (chemical formula)

Formula
1,970,360 g/mol
8680 atoms

Ac8680 has a molar mass of 1,970,360 g/mol, made up of 8680 atoms across 1 element: 8680 × Ac.

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Molar mass

Molar mass1,970,360 g/mol

Total atoms per molecule8680

Distinct elements1

Mass of one molecule3.2718598 × 10^-18 g

Molecules per gram3.0563657 × 10^17

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%

Actinium (Ac × 8680)1,970,360 g/mol, 100%

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Elements in this formula

Actinium

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