Recognised as Colour
#F73147
- #F73147
- Red
- Dark
- Nearest: Crimson
#F73147 is a red with RGB values 247, 49, 71 and HSL 353°, 93%, 58%. It is a dark colour, so black text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Crimson.
Colour values
#F73147#F73147
HEX#F73147
RGBrgb(247, 49, 71)
RGB (0–1)0.9686, 0.1922, 0.2784
RGB percentages96.9%, 19.2%, 27.8%
HSLhsl(353.3, 92.5%, 58%)
HSV / HSBhsv(353.3, 80.2%, 96.9%)
CMYK0%, 80.2%, 71.3%, 3.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,200,007
CSS custom property--colour: #F73147;
Brightness & contrast
Relative luminance0.22426WCAG 2.x, 0 is black and 1 is white
Perceived brightness142.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.49:1
Contrast with white3.83:1WCAG normal text: Fail
Contrast with black5.49:1WCAG normal text: AA
Greyscale equivalent#5D5D5D
Inverted#08CEB8
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.83:1WCAG large text: AA
Contrast with black, large text5.49:1WCAG large text: AAA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#31F7E1
Analogous#F731AA, #F77E31
Triadic#47F731, #3147F7
Split complementary#31F77E, #31AAF7
Tetradic#AAF731, #31F7E1, #7E31F7
Tints, shades & saturation
Channel breakdown
R247
G49
B71
Red247 (96.9%)
Green49 (19.2%)
Blue71 (27.8%)
Hue353.33°
Saturation (HSL)92.52%
Lightness58.04%
Dominant channelRed
Hex per channelR F7 · G 31 · B 47
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Also reads as
F73147 (chemical formula)
- Formula
- 1,389,646.706 g/mol
- 73147 atoms
F73147 has a molar mass of 1,389,646.706 g/mol, made up of 73147 atoms across 1 element: 73147 × F.
Molar mass
Molar mass1,389,646.706 g/mol
Total atoms per molecule73147
Distinct elements1
Mass of one molecule2.3075626 × 10^-18 g
Molecules per gram4.3335768 × 10^17
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
F100%
Fluorine (F × 73147)1,389,646.706 g/mol, 100%
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