Recognised as Colour

#C13209

#C13209
Red
Dark
Nearest: Firebrick

#C13209 is a red with RGB values 193, 50, 9 and HSL 13°, 91%, 40%. It is a dark colour, so white text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#C13209#C13209

HEX#C13209

RGBrgb(193, 50, 9)

RGB (0–1)0.7569, 0.1961, 0.0353

RGB percentages75.7%, 19.6%, 3.5%

HSLhsl(13.4, 91.1%, 39.6%)

HSV / HSBhsv(13.4, 95.3%, 75.7%)

CMYK0%, 74.1%, 95.3%, 24.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,661,257

CSS custom property--colour: #C13209;

Brightness & contrast

Relative luminance0.13638WCAG 2.x, 0 is black and 1 is white

Perceived brightness112.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.63:1

Contrast with white5.63:1WCAG normal text: AA

Contrast with black3.73:1WCAG normal text: Fail

Greyscale equivalent#4D4D4D

Inverted#3ECDF6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5F5300no red cones; affects about 1% of men; ΔE 59.9 from the original

Deuteranopia#827300no green cones; the most common form, about 1% of men; ΔE 60 from the original

Tritanopia#D5002Cno blue cones; rare, and affects men and women equally; ΔE 20.5 from the original

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

Contrast with white, large text5.63:1WCAG large text: AAA

Contrast with black, large text3.73:1WCAG large text: AA

Named colours

Firebrick · ΔE 16.3 Tomato · ΔE 19.9 Dark red · ΔE 20.1 Chocolate · ΔE 22 Brown · ΔE 24.1 Orange red · ΔE 24.5

Nearest named CSS colourFirebrick (#B22222)ΔE 16.3, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0998C1

Analogous#C1093C, #C18E09

Triadic#09C132, #3209C1

Split complementary#09C18E, #093CC1

Tetradic#3CC109, #0998C1, #8E09C1

Tints, shades & saturation

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

Lighter +40%#FAB19C

Lighter +30%#F88A6B

Lighter +20%#F6643A

Lighter +10%#F23F0B

Darker −10%#902507

Darker −20%#601904

Darker −30%#2F0C02

Darker −40%#000000

More saturated +25%#CA2D00

Less saturated −25%#A84022

Channel breakdown

R193

G50

Red193 (75.7%)

Green50 (19.6%)

Blue9 (3.5%)

Hue13.37°

Saturation (HSL)91.09%

Lightness39.61%

Dominant channelRed

Hex per channelR C1 · G 32 · B 09

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Harmonies

Lighter and darker

Similar named colours

Also reads as

C13209 (chemical formula)

Formula
158,653.299 g/mol
13209 atoms

C13209 has a molar mass of 158,653.299 g/mol, made up of 13209 atoms across 1 element: 13209 × C.

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Molar mass

Molar mass158,653.299 g/mol

Total atoms per molecule13209

Distinct elements1

Mass of one molecule2.6345 × 10^-19 g

Molecules per gram3.7957867 × 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

C100%

Carbon (C × 13209)158,653.299 g/mol, 100%

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Elements in this formula

Carbon

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