Recognised as Colour
#FF21F2
- #FF21F2
- Magenta
- Dark
- Nearest: Fuchsia
#FF21F2 is a magenta with RGB values 255, 33, 242 and HSL 304°, 100%, 56%. It is a dark colour, so black text on it reaches 6.8:1 contrast (AA for normal text). The nearest named colour is Fuchsia.
Colour values
#FF21F2#FF21F2
HEX#FF21F2
RGBrgb(255, 33, 242)
RGB (0–1)1, 0.1294, 0.949
RGB percentages100%, 12.9%, 94.9%
HSLhsl(303.5, 100%, 56.5%)
HSV / HSBhsv(303.5, 87.1%, 100%)
CMYK0%, 87.1%, 5.1%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,720,370
CSS custom property--colour: #FF21F2;
Brightness & contrast
Relative luminance0.28759WCAG 2.x, 0 is black and 1 is white
Perceived brightness163.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.75:1
Contrast with white3.11:1WCAG normal text: Fail
Contrast with black6.75:1WCAG normal text: AA
Greyscale equivalent#5F5F5F
Inverted#00DE0D
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.11:1WCAG large text: AA
Contrast with black, large text6.75:1WCAG large text: AAA
Named colours
Hue familymagenta
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#21FF2E
Analogous#9D21FF, #FF2183
Triadic#F2FF21, #21F2FF
Split complementary#83FF21, #21FF9D
Tetradic#FF9D21, #21FF2E, #2183FF
Tints, shades & saturation
Channel breakdown
R255
G33
B242
Red255 (100%)
Green33 (12.9%)
Blue242 (94.9%)
Hue303.51°
Saturation (HSL)100%
Lightness56.47%
Dominant channelRed
Hex per channelR FF · G 21 · B F2
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Harmonies
Similar named colours
Also reads as
FF21F2 (chemical formula)
- Formula
- 455.952 g/mol
- 24 atoms
FF21F2 has a molar mass of 455.952 g/mol, made up of 24 atoms across 1 element: 24 × F.
Molar mass
Molar mass455.952 g/mol
Total atoms per molecule24
Distinct elements1
Mass of one molecule7.5712611 × 10^-22 g
Molecules per gram1.3207839 × 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
F100%
Fluorine (F × 24)455.952 g/mol, 100%
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