Recognised as Colour

#AC2C53

#AC2C53
Red
Dark
Nearest: Indian red

#AC2C53 is a red with RGB values 172, 44, 83 and HSL 342°, 59%, 42%. It is a dark colour, so white text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Indian red.

Colour values

#AC2C53#AC2C53

HEX#AC2C53

RGBrgb(172, 44, 83)

RGB (0–1)0.6745, 0.1725, 0.3255

RGB percentages67.5%, 17.3%, 32.5%

HSLhsl(341.7, 59.3%, 42.4%)

HSV / HSBhsv(341.7, 74.4%, 67.5%)

CMYK0%, 74.4%, 51.7%, 32.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,283,539

CSS custom property--colour: #AC2C53;

Brightness & contrast

Relative luminance0.11197WCAG 2.x, 0 is black and 1 is white

Perceived brightness103.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.48:1

Contrast with white6.48:1WCAG normal text: AA

Contrast with black3.24:1WCAG normal text: Fail

Greyscale equivalent#4A4A4A

Inverted#53D3AC

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4C4E54no red cones; affects about 1% of men; ΔE 55 from the original

Deuteranopia#6D6750no green cones; the most common form, about 1% of men; ΔE 55.9 from the original

Tritanopia#BC0D3Cno blue cones; rare, and affects men and women equally; ΔE 18.3 from the original

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

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

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

Named colours

Indian red · ΔE 21.3 Brown · ΔE 22.8 Pale violetred · ΔE 23.6 Firebrick · ΔE 29.5 Medium violet red · ΔE 29.5 Light coral · ΔE 30.6

Nearest named CSS colourIndian red (#CD5C5C)ΔE 21.3, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#2CAC85

Analogous#AC2C93, #AC452C

Triadic#53AC2C, #2C53AC

Split complementary#2CAC45, #2C93AC

Tetradic#93AC2C, #2CAC85, #452CAC

Tints, shades & saturation

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

Lighter +40%#EDB7C8

Lighter +30%#E28FA8

Lighter +20%#D86689

Lighter +10%#CE3E69

Darker −10%#83223F

Darker −20%#5B172C

Darker −30%#320D18

Darker −40%#0A0205

More saturated +25%#C71148

Less saturated −25%#91475E

Channel breakdown

R172

G44

B83

Red172 (67.5%)

Green44 (17.3%)

Blue83 (32.5%)

Hue341.72°

Saturation (HSL)59.26%

Lightness42.35%

Dominant channelRed

Hex per channelR AC · G 2C · B 53

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Ac2C53 (chemical formula)

Formula
1,090.583 g/mol
55 atoms

Ac2C53 has a molar mass of 1,090.583 g/mol, made up of 55 atoms across 2 elements: 2 × Ac, 53 × C.

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Molar mass

Molar mass1,090.583 g/mol

Total atoms per molecule55

Distinct elements2

Mass of one molecule1.8109557 × 10^-21 g

Molecules per gram5.5219463 × 10^20

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

Ac41.6%

C58.4%

Actinium (Ac × 2)454 g/mol, 41.629%

Carbon (C × 53)636.583 g/mol, 58.371%

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