Recognised as Colour
#F42448
- #F42448
- Red
- Dark
- Nearest: Crimson
#F42448 is a red with RGB values 244, 36, 72 and HSL 350°, 90%, 55%. It is a dark colour, so black text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Crimson.
Colour values
#F42448#F42448
HEX#F42448
RGBrgb(244, 36, 72)
RGB (0–1)0.9569, 0.1412, 0.2824
RGB percentages95.7%, 14.1%, 28.2%
HSLhsl(349.6, 90.4%, 54.9%)
HSV / HSBhsv(349.6, 85.2%, 95.7%)
CMYK0%, 85.2%, 70.5%, 4.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,000,072
CSS custom property--colour: #F42448;
Brightness & contrast
Relative luminance0.20963WCAG 2.x, 0 is black and 1 is white
Perceived brightness138.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.19:1
Contrast with white4.04:1WCAG normal text: Fail
Contrast with black5.19:1WCAG normal text: AA
Greyscale equivalent#535353
Inverted#0BDBB7
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.04:1WCAG large text: AA
Contrast with black, large text5.19:1WCAG large text: AAA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#24F4D0
Analogous#F424B0, #F46824
Triadic#48F424, #2448F4
Split complementary#24F468, #24B0F4
Tetradic#B0F424, #24F4D0, #6824F4
Tints, shades & saturation
Channel breakdown
R244
G36
B72
Red244 (95.7%)
Green36 (14.1%)
Blue72 (28.2%)
Hue349.62°
Saturation (HSL)90.43%
Lightness54.9%
Dominant channelRed
Hex per channelR F4 · G 24 · B 48
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Also reads as
F42448 (chemical formula)
- Formula
- 806,427.104 g/mol
- 42448 atoms
F42448 has a molar mass of 806,427.104 g/mol, made up of 42448 atoms across 1 element: 42448 × F.
Molar mass
Molar mass806,427.104 g/mol
Total atoms per molecule42448
Distinct elements1
Mass of one molecule1.3391037 × 10^-18 g
Molecules per gram7.4676815 × 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 × 42448)806,427.104 g/mol, 100%
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