Recognised as Colour
#F91016
- #F91016
- Red
- Dark
- Nearest: Red
#F91016 is a red with RGB values 249, 16, 22 and HSL 358°, 95%, 52%. It is a dark colour, so black text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Red.
Colour values
#F91016#F91016
HEX#F91016
RGBrgb(249, 16, 22)
RGB (0–1)0.9765, 0.0627, 0.0863
RGB percentages97.6%, 6.3%, 8.6%
HSLhsl(358.5, 95.1%, 52%)
HSV / HSBhsv(358.5, 93.6%, 97.6%)
CMYK0%, 93.6%, 91.2%, 2.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,322,582
CSS custom property--colour: #F91016;
Brightness & contrast
Relative luminance0.20568WCAG 2.x, 0 is black and 1 is white
Perceived brightness136.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.11:1
Contrast with white4.11:1WCAG normal text: Fail
Contrast with black5.11:1WCAG normal text: AA
Greyscale equivalent#424242
Inverted#06EFE9
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.11:1WCAG large text: AA
Contrast with black, large text5.11:1WCAG large text: AAA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#10F9F3
Analogous#F9108A, #F97E10
Triadic#16F910, #1016F9
Split complementary#10F97E, #108AF9
Tetradic#8BF910, #10F9F3, #7F10F9
Tints, shades & saturation
Channel breakdown
R249
G16
B22
Red249 (97.6%)
Green16 (6.3%)
Blue22 (8.6%)
Hue358.45°
Saturation (HSL)95.1%
Lightness51.96%
Dominant channelRed
Hex per channelR F9 · G 10 · B 16
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Also reads as
F91016 (chemical formula)
- Formula
- 1,729,121.968 g/mol
- 91016 atoms
F91016 has a molar mass of 1,729,121.968 g/mol, made up of 91016 atoms across 1 element: 91016 × F.
Molar mass
Molar mass1,729,121.968 g/mol
Total atoms per molecule91016
Distinct elements1
Mass of one molecule2.8712746 × 10^-18 g
Molecules per gram3.4827738 × 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 × 91016)1,729,121.968 g/mol, 100%
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