Recognised as Colour
#F21BFF
- #F21BFF
- Magenta
- Dark
- Nearest: Fuchsia
#F21BFF is a magenta with RGB values 242, 27, 255 and HSL 297°, 100%, 55%. It is a dark colour, so black text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Fuchsia.
Colour values
#F21BFF#F21BFF
HEX#F21BFF
RGBrgb(242, 27, 255)
RGB (0–1)0.949, 0.1059, 1
RGB percentages94.9%, 10.6%, 100%
HSLhsl(296.6, 100%, 55.3%)
HSV / HSBhsv(296.6, 89.4%, 100%)
CMYK5.1%, 89.4%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,866,879
CSS custom property--colour: #F21BFF;
Brightness & contrast
Relative luminance0.26881WCAG 2.x, 0 is black and 1 is white
Perceived brightness159.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.38:1
Contrast with white3.29:1WCAG normal text: Fail
Contrast with black6.38:1WCAG normal text: AA
Greyscale equivalent#595959
Inverted#0DE400
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.29:1WCAG large text: AA
Contrast with black, large text6.38:1WCAG large text: AAA
Named colours
Hue familymagenta
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#28FF1B
Analogous#801BFF, #FF1B9A
Triadic#FFF21B, #1BFFF2
Split complementary#9AFF1B, #1BFF80
Tetradic#FF801B, #28FF1B, #1B9AFF
Tints, shades & saturation
Channel breakdown
R242
G27
B255
Red242 (94.9%)
Green27 (10.6%)
Blue255 (100%)
Hue296.58°
Saturation (HSL)100%
Lightness55.29%
Dominant channelBlue
Hex per channelR F2 · G 1B · B FF
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Harmonies
Similar named colours
Also reads as
F21BFF (chemical formula)
- Formula
- 447.764 g/mol
- 24 atoms
F21BFF has a molar mass of 447.764 g/mol, made up of 24 atoms across 2 elements: 23 × F, 1 × B.
Molar mass
Molar mass447.764 g/mol
Total atoms per molecule24
Distinct elements2
Mass of one molecule7.4352961 × 10^-22 g
Molecules per gram1.3449363 × 10^21
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
F97.6%
B2.4%
Fluorine (F × 23)436.954 g/mol, 97.586%
Boron (B)10.81 g/mol, 2.414%
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