Recognised as Colour

#C11228

#C11228
Red
Dark
Nearest: Firebrick

#C11228 is a red with RGB values 193, 18, 40 and HSL 352°, 83%, 41%. It is a dark colour, so white text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#C11228#C11228

HEX#C11228

RGBrgb(193, 18, 40)

RGB (0–1)0.7569, 0.0706, 0.1569

RGB percentages75.7%, 7.1%, 15.7%

HSLhsl(352.5, 82.9%, 41.4%)

HSV / HSBhsv(352.5, 90.7%, 75.7%)

CMYK0%, 90.7%, 79.3%, 24.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,653,096

CSS custom property--colour: #C11228;

Brightness & contrast

Relative luminance0.11923WCAG 2.x, 0 is black and 1 is white

Perceived brightness107.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.2:1

Contrast with white6.2:1WCAG normal text: AA

Contrast with black3.38:1WCAG normal text: Fail

Greyscale equivalent#393939

Inverted#3EEDD7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#514A27no red cones; affects about 1% of men; ΔE 68.7 from the original

Deuteranopia#7A6E20no green cones; the most common form, about 1% of men; ΔE 68.8 from the original

Tritanopia#D5001Eno blue cones; rare, and affects men and women equally; ΔE 12.7 from the original

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

Contrast with white, large text6.2:1WCAG large text: AAA

Contrast with black, large text3.38:1WCAG large text: AA

Named colours

Firebrick · ΔE 8 Crimson · ΔE 10.1 Brown · ΔE 15.9 Dark red · ΔE 18.6 Maroon · ΔE 22 Tomato · ΔE 23.7

Nearest named CSS colourFirebrick (#B22222)ΔE 7.96, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#12C1AB

Analogous#C11280, #C15412

Triadic#28C112, #1228C1

Split complementary#12C153, #1280C1

Tetradic#7FC112, #12C1AB, #5312C1

Tints, shades & saturation

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

Lighter +40%#F7A8B2

Lighter +30%#F37989

Lighter +20%#EE4B5F

Lighter +10%#EA1C36

Darker −10%#920E1E

Darker −20%#640915

Darker −30%#35050B

Darker −40%#060101

More saturated +25%#D3001B

Less saturated −25%#A72C3C

Channel breakdown

R193

G18

B40

Red193 (75.7%)

Green18 (7.1%)

Blue40 (15.7%)

Hue352.46°

Saturation (HSL)82.94%

Lightness41.37%

Dominant channelRed

Hex per channelR C1 · G 12 · B 28

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Harmonies

Lighter and darker

Similar named colours

Also reads as

C11228 (chemical formula)

Formula
134,859.508 g/mol
11228 atoms

C11228 has a molar mass of 134,859.508 g/mol, made up of 11228 atoms across 1 element: 11228 × C.

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Molar mass

Molar mass134,859.508 g/mol

Total atoms per molecule11228

Distinct elements1

Mass of one molecule2.2393948 × 10^-19 g

Molecules per gram4.4654922 × 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 × 11228)134,859.508 g/mol, 100%

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Elements in this formula

Carbon

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