Recognised as Colour

#AC2512

#AC2512
Red
Dark
Nearest: Firebrick

#AC2512 is a red with RGB values 172, 37, 18 and HSL 7°, 81%, 37%. It is a dark colour, so white text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#AC2512#AC2512

HEX#AC2512

RGBrgb(172, 37, 18)

RGB (0–1)0.6745, 0.1451, 0.0706

RGB percentages67.5%, 14.5%, 7.1%

HSLhsl(7.4, 81.1%, 37.3%)

HSV / HSBhsv(7.4, 89.5%, 67.5%)

CMYK0%, 78.5%, 89.5%, 32.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,281,682

CSS custom property--colour: #AC2512;

Brightness & contrast

Relative luminance0.10137WCAG 2.x, 0 is black and 1 is white

Perceived brightness98.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.94:1

Contrast with white6.94:1WCAG normal text: AA

Contrast with black3.03:1WCAG normal text: Fail

Greyscale equivalent#404040

Inverted#53DAED

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#50470Dno red cones; affects about 1% of men; ΔE 57.8 from the original

Deuteranopia#716406no green cones; the most common form, about 1% of men; ΔE 57.4 from the original

Tritanopia#BE0023no blue cones; rare, and affects men and women equally; ΔE 13.4 from the original

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

Contrast with white, large text6.94:1WCAG large text: AAA

Contrast with black, large text3.03:1WCAG large text: AA

Named colours

Firebrick · ΔE 7.4 Dark red · ΔE 10.6 Brown · ΔE 14.2 Maroon · ΔE 14.8 Crimson · ΔE 22.9 Tomato · ΔE 24.7

Nearest named CSS colourFirebrick (#B22222)ΔE 7.45, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1299AC

Analogous#AC124C, #AC7212

Triadic#12AC25, #2512AC

Split complementary#12AC72, #124CAC

Tetradic#4CAC12, #1299AC, #7212AC

Tints, shades & saturation

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

Lighter +40%#F4A296

Lighter +30%#EF7968

Lighter +20%#EA4F3A

Lighter +10%#DA2F17

Darker −10%#7E1B0D

Darker −20%#501108

Darker −30%#210704

Darker −40%#000000

More saturated +25%#BE1700

Less saturated −25%#94372A

Channel breakdown

R172

G37

B18

Red172 (67.5%)

Green37 (14.5%)

Blue18 (7.1%)

Hue7.4°

Saturation (HSL)81.05%

Lightness37.25%

Dominant channelRed

Hex per channelR AC · G 25 · B 12

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Ac2512 (chemical formula)

Formula
570,224 g/mol
2512 atoms

Ac2512 has a molar mass of 570,224 g/mol, made up of 2512 atoms across 1 element: 2512 × Ac.

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Molar mass

Molar mass570,224 g/mol

Total atoms per molecule2512

Distinct elements1

Mass of one molecule9.4687923 × 10^-19 g

Molecules per gram1.0561009 × 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%

Actinium (Ac × 2512)570,224 g/mol, 100%

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Elements in this formula

Actinium

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