Recognised as Colour

#AC3356

#AC3356
Red
Dark
Nearest: Indian red

#AC3356 is a red with RGB values 172, 51, 86 and HSL 343°, 54%, 44%. It is a dark colour, so white text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Indian red.

Colour values

#AC3356#AC3356

HEX#AC3356

RGBrgb(172, 51, 86)

RGB (0–1)0.6745, 0.2, 0.3373

RGB percentages67.5%, 20%, 33.7%

HSLhsl(342.6, 54.3%, 43.7%)

HSV / HSBhsv(342.6, 70.3%, 67.5%)

CMYK0%, 70.3%, 50%, 32.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,285,334

CSS custom property--colour: #AC3356;

Brightness & contrast

Relative luminance0.1181WCAG 2.x, 0 is black and 1 is white

Perceived brightness105.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.25:1

Contrast with white6.25:1WCAG normal text: AA

Contrast with black3.36:1WCAG normal text: Fail

Greyscale equivalent#4F4F4F

Inverted#53CCA9

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4F5157no red cones; affects about 1% of men; ΔE 52.6 from the original

Deuteranopia#6F6953no green cones; the most common form, about 1% of men; ΔE 53.4 from the original

Tritanopia#BB1D41no blue cones; rare, and affects men and women equally; ΔE 16.7 from the original

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

Contrast with white, large text6.25:1WCAG large text: AAA

Contrast with black, large text3.36:1WCAG large text: AA

Named colours

Indian red · ΔE 20.1 Pale violetred · ΔE 21.8 Brown · ΔE 23.1 Light coral · ΔE 29.2 Firebrick · ΔE 30.2 Medium violet red · ΔE 30.4

Nearest named CSS colourIndian red (#CD5C5C)ΔE 20.12, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#33AC89

Analogous#AC3392, #AC4C33

Triadic#56AC33, #3356AC

Split complementary#33AC4C, #3392AC

Tetradic#93AC33, #33AC89, #4D33AC

Tints, shades & saturation

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

Lighter +40%#ECBFCC

Lighter +30%#E098AD

Lighter +20%#D5708D

Lighter +10%#C9496E

Darker −10%#852742

Darker −20%#5D1C2F

Darker −30%#36101B

Darker −40%#0F0407

More saturated +25%#C8174A

Less saturated −25%#904F62

Channel breakdown

R172

G51

B86

Red172 (67.5%)

Green51 (20%)

Blue86 (33.7%)

Hue342.64°

Saturation (HSL)54.26%

Lightness43.73%

Dominant channelRed

Hex per channelR AC · G 33 · B 56

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Ac3356 (chemical formula)

Formula
761,812 g/mol
3356 atoms

Ac3356 has a molar mass of 761,812 g/mol, made up of 3356 atoms across 1 element: 3356 × Ac.

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Molar mass

Molar mass761,812 g/mol

Total atoms per molecule3356

Distinct elements1

Mass of one molecule1.2650186 × 10^-18 g

Molecules per gram7.9050222 × 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 × 3356)761,812 g/mol, 100%

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Elements in this formula

Actinium

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