Recognised as Colour

#AC3329

#AC3329
Red
Dark
Nearest: Brown

#AC3329 is a red with RGB values 172, 51, 41 and HSL 5°, 62%, 42%. It is a dark colour, so white text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Brown.

Colour values

#AC3329#AC3329

HEX#AC3329

RGBrgb(172, 51, 41)

RGB (0–1)0.6745, 0.2, 0.1608

RGB percentages67.5%, 20%, 16.1%

HSLhsl(4.6, 61.5%, 41.8%)

HSV / HSBhsv(4.6, 76.2%, 67.5%)

CMYK0%, 70.3%, 76.2%, 32.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,285,289

CSS custom property--colour: #AC3329;

Brightness & contrast

Relative luminance0.11298WCAG 2.x, 0 is black and 1 is white

Perceived brightness102.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.44:1

Contrast with white6.44:1WCAG normal text: AA

Contrast with black3.26:1WCAG normal text: Fail

Greyscale equivalent#4C4C4C

Inverted#53CCD6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#564E27no red cones; affects about 1% of men; ΔE 52.7 from the original

Deuteranopia#746824no green cones; the most common form, about 1% of men; ΔE 52.8 from the original

Tritanopia#BD0632no blue cones; rare, and affects men and women equally; ΔE 16.5 from the original

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

Contrast with white, large text6.44:1WCAG large text: AAA

Contrast with black, large text3.26:1WCAG large text: AA

Named colours

Brown · ΔE 4.7 Firebrick · ΔE 8.1 Dark red · ΔE 14.1 Maroon · ΔE 15 Indian red · ΔE 18.5 Sienna · ΔE 19.6

Nearest named CSS colourBrown (#A52A2A)ΔE 4.72, a close match

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#29A2AC

Analogous#AC2961, #AC7529

Triadic#29AC33, #3329AC

Split complementary#29AC75, #2960AC

Tetradic#60AC29, #29A2AC, #7529AC

Tints, shades & saturation

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

Lighter +40%#EDB8B4

Lighter +30%#E3918B

Lighter +20%#D96B62

Lighter +10%#D04438

Darker −10%#83271F

Darker −20%#5A1B15

Darker −30%#300E0C

Darker −40%#070202

More saturated +25%#C71C0E

Less saturated −25%#914A44

Channel breakdown

R172

G51

B41

Red172 (67.5%)

Green51 (20%)

Blue41 (16.1%)

Hue4.58°

Saturation (HSL)61.5%

Lightness41.76%

Dominant channelRed

Hex per channelR AC · G 33 · B 29

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Ac3329 (chemical formula)

Formula
755,683 g/mol
3329 atoms

Ac3329 has a molar mass of 755,683 g/mol, made up of 3329 atoms across 1 element: 3329 × Ac.

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Molar mass

Molar mass755,683 g/mol

Total atoms per molecule3329

Distinct elements1

Mass of one molecule1.2548411 × 10^-18 g

Molecules per gram7.9691362 × 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 × 3329)755,683 g/mol, 100%

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Elements in this formula

Actinium

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