Recognised as Colour
#F51430
- #F51430
- Red
- Dark
- Nearest: Crimson
#F51430 is a red with RGB values 245, 20, 48 and HSL 353°, 92%, 52%. It is a dark colour, so black text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Crimson.
Colour values
#F51430#F51430
HEX#F51430
RGBrgb(245, 20, 48)
RGB (0–1)0.9608, 0.0784, 0.1882
RGB percentages96.1%, 7.8%, 18.8%
HSLhsl(352.5, 91.8%, 52%)
HSV / HSBhsv(352.5, 91.8%, 96.1%)
CMYK0%, 91.8%, 80.4%, 3.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,061,488
CSS custom property--colour: #F51430;
Brightness & contrast
Relative luminance0.20126WCAG 2.x, 0 is black and 1 is white
Perceived brightness135.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.03:1
Contrast with white4.18:1WCAG normal text: Fail
Contrast with black5.03:1WCAG normal text: AA
Greyscale equivalent#464646
Inverted#0AEBCF
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.18:1WCAG large text: AA
Contrast with black, large text5.03:1WCAG large text: AAA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#14F5D9
Analogous#F514A1, #F56914
Triadic#30F514, #1430F5
Split complementary#14F569, #14A1F5
Tetradic#A0F514, #14F5D9, #6814F5
Tints, shades & saturation
Channel breakdown
R245
G20
B48
Red245 (96.1%)
Green20 (7.8%)
Blue48 (18.8%)
Hue352.53°
Saturation (HSL)91.84%
Lightness51.96%
Dominant channelRed
Hex per channelR F5 · G 14 · B 30
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Also reads as
F51430 (chemical formula)
- Formula
- 977,067.14 g/mol
- 51430 atoms
F51430 has a molar mass of 977,067.14 g/mol, made up of 51430 atoms across 1 element: 51430 × F.
Molar mass
Molar mass977,067.14 g/mol
Total atoms per molecule51430
Distinct elements1
Mass of one molecule1.6224582 × 10^-18 g
Molecules per gram6.1634871 × 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 × 51430)977,067.14 g/mol, 100%
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