Recognised as Colour

#AC807B

#AC807B
Red
Dark
Nearest: Rosy brown

#AC807B is a red with RGB values 172, 128, 123 and HSL 6°, 23%, 58%. It is a dark colour, so black text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Rosy brown.

Colour values

#AC807B#AC807B

HEX#AC807B

RGBrgb(172, 128, 123)

RGB (0–1)0.6745, 0.502, 0.4824

RGB percentages67.5%, 50.2%, 48.2%

HSLhsl(6.1, 22.8%, 57.8%)

HSV / HSBhsv(6.1, 28.5%, 67.5%)

CMYK0%, 25.6%, 28.5%, 32.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,305,083

CSS custom property--colour: #AC807B;

Brightness & contrast

Relative luminance0.25639WCAG 2.x, 0 is black and 1 is white

Perceived brightness142.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.13:1

Contrast with white3.43:1WCAG normal text: Fail

Contrast with black6.13:1WCAG normal text: AA

Greyscale equivalent#898989

Inverted#537F84

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#89867Bno red cones; affects about 1% of men; ΔE 17.6 from the original

Deuteranopia#938E7Ano green cones; the most common form, about 1% of men; ΔE 18.1 from the original

Tritanopia#B67B7Fno blue cones; rare, and affects men and women equally; ΔE 7.6 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text3.43:1WCAG large text: AA

Contrast with black, large text6.13:1WCAG large text: AAA

Named colours

Rosy brown · ΔE 6.6 Gray · ΔE 19.2 Dark grey · ΔE 22 Dim grey · ΔE 23 Dark salmon · ΔE 25 Tan · ΔE 25.5

Nearest named CSS colourRosy brown (#BC8F8F)ΔE 6.56, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#7BA7AC

Analogous#AC7B8F, #AC997B

Triadic#7BAC80, #807BAC

Split complementary#7BAC99, #7B8FAC

Tetradic#8FAC7B, #7BA7AC, #997BAC

Tints, shades & saturation

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

Lighter +40%#FBF9F8

Lighter +30%#E7DAD9

Lighter +20%#D3BCBA

Lighter +10%#C09E9A

Darker −10%#96645E

Darker −20%#764F4B

Darker −30%#573A37

Darker −40%#382523

More saturated +25%#C76B60

Less saturated −25%#949494

Channel breakdown

R172

G128

B123

Red172 (67.5%)

Green128 (50.2%)

Blue123 (48.2%)

Hue6.12°

Saturation (HSL)22.79%

Lightness57.84%

Dominant channelRed

Hex per channelR AC · G 80 · B 7B

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Ac807B (chemical formula)

Formula
183,199.81 g/mol
808 atoms

Ac807B has a molar mass of 183,199.81 g/mol, made up of 808 atoms across 2 elements: 807 × Ac, 1 × B.

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Molar mass

Molar mass183,199.81 g/mol

Total atoms per molecule808

Distinct elements2

Mass of one molecule3.0421044 × 10^-19 g

Molecules per gram3.2871981 × 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%

B0%

Actinium (Ac × 807)183,189 g/mol, 99.994%

Boron (B)10.81 g/mol, 0.006%

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Elements in this formula

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