Recognised as Colour

#AC2407

#AC2407
Red
Dark
Nearest: Firebrick

#AC2407 is a red with RGB values 172, 36, 7 and HSL 11°, 92%, 35%. It is a dark colour, so white text on it reaches 7:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#AC2407#AC2407

HEX#AC2407

RGBrgb(172, 36, 7)

RGB (0–1)0.6745, 0.1412, 0.0275

RGB percentages67.5%, 14.1%, 2.7%

HSLhsl(10.5, 92.2%, 35.1%)

HSV / HSBhsv(10.5, 95.9%, 67.5%)

CMYK0%, 79.1%, 95.9%, 32.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,281,415

CSS custom property--colour: #AC2407;

Brightness & contrast

Relative luminance0.10048WCAG 2.x, 0 is black and 1 is white

Perceived brightness98 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.98:1

Contrast with white6.98:1WCAG normal text: AA

Contrast with black3.01:1WCAG normal text: Fail

Greyscale equivalent#3F3F3F

Inverted#53DBF8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#504600no red cones; affects about 1% of men; ΔE 57.7 from the original

Deuteranopia#716400no green cones; the most common form, about 1% of men; ΔE 57.6 from the original

Tritanopia#BE0020no blue cones; rare, and affects men and women equally; ΔE 14.4 from the original

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

Contrast with white, large text6.98:1WCAG large text: AAA

Contrast with black, large text3.01:1WCAG large text: AA

Named colours

Firebrick · ΔE 11.2 Dark red · ΔE 12.3 Maroon · ΔE 16.9 Brown · ΔE 18.1 Tomato · ΔE 24.8 Crimson · ΔE 25

Nearest named CSS colourFirebrick (#B22222)ΔE 11.17, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#078FAC

Analogous#AC073D, #AC7707

Triadic#07AC24, #2407AC

Split complementary#07AC76, #073DAC

Tetradic#3CAC07, #078FAC, #7607AC

Tints, shades & saturation

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

Lighter +40%#FA9A85

Lighter +30%#F87154

Lighter +20%#F64823

Lighter +10%#DD2E09

Darker −10%#7B1A05

Darker −20%#4A0F03

Darker −30%#190501

Darker −40%#000000

More saturated +25%#B31F00

Less saturated −25%#96331D

Channel breakdown

R172

G36

Red172 (67.5%)

Green36 (14.1%)

Blue7 (2.7%)

Hue10.55°

Saturation (HSL)92.18%

Lightness35.1%

Dominant channelRed

Hex per channelR AC · G 24 · B 07

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Ac2407 (chemical formula)

Formula
546,389 g/mol
2407 atoms

Ac2407 has a molar mass of 546,389 g/mol, made up of 2407 atoms across 1 element: 2407 × Ac.

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Molar mass

Molar mass546,389 g/mol

Total atoms per molecule2407

Distinct elements1

Mass of one molecule9.0730028 × 10^-19 g

Molecules per gram1.1021709 × 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 × 2407)546,389 g/mol, 100%

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Elements in this formula

Actinium

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