Recognised as Colour
#F21052
- #F21052
- Red
- Dark
- Nearest: Crimson
#F21052 is a red with RGB values 242, 16, 82 and HSL 342°, 90%, 51%. 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
#F21052#F21052
HEX#F21052
RGBrgb(242, 16, 82)
RGB (0–1)0.949, 0.0627, 0.3216
RGB percentages94.9%, 6.3%, 32.2%
HSLhsl(342.5, 89.7%, 50.6%)
HSV / HSBhsv(342.5, 93.4%, 94.9%)
CMYK0%, 93.4%, 66.1%, 5.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,863,890
CSS custom property--colour: #F21052;
Brightness & contrast
Relative luminance0.19857WCAG 2.x, 0 is black and 1 is white
Perceived brightness135.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.97:1
Contrast with white4.22:1WCAG normal text: Fail
Contrast with black4.97:1WCAG normal text: AA
Greyscale equivalent#454545
Inverted#0DEFAD
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.22:1WCAG large text: AA
Contrast with black, large text4.97:1WCAG large text: AAA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#10F2B0
Analogous#F210C3, #F23F10
Triadic#52F210, #1052F2
Split complementary#10F23F, #10C3F2
Tetradic#C3F210, #10F2B0, #3F10F2
Tints, shades & saturation
Channel breakdown
R242
G16
B82
Red242 (94.9%)
Green16 (6.3%)
Blue82 (32.2%)
Hue342.48°
Saturation (HSL)89.68%
Lightness50.59%
Dominant channelRed
Hex per channelR F2 · G 10 · B 52
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Also reads as
F21052 (chemical formula)
- Formula
- 399,945.896 g/mol
- 21052 atoms
F21052 has a molar mass of 399,945.896 g/mol, made up of 21052 atoms across 1 element: 21052 × F.
Molar mass
Molar mass399,945.896 g/mol
Total atoms per molecule21052
Distinct elements1
Mass of one molecule6.6412579 × 10^-19 g
Molecules per gram1.5057389 × 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
F100%
Fluorine (F × 21052)399,945.896 g/mol, 100%
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