Recognised as Colour
#FB31FF
- #FB31FF
- Magenta
- Dark
- Nearest: Fuchsia
#FB31FF is a magenta with RGB values 251, 49, 255 and HSL 299°, 100%, 60%. It is a dark colour, so black text on it reaches 7:1 contrast (AA for normal text). The nearest named colour is Fuchsia.
Colour values
#FB31FF#FB31FF
HEX#FB31FF
RGBrgb(251, 49, 255)
RGB (0–1)0.9843, 0.1922, 1
RGB percentages98.4%, 19.2%, 100%
HSLhsl(298.8, 100%, 59.6%)
HSV / HSBhsv(298.8, 80.8%, 100%)
CMYK1.6%, 80.8%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,462,335
CSS custom property--colour: #FB31FF;
Brightness & contrast
Relative luminance0.29926WCAG 2.x, 0 is black and 1 is white
Perceived brightness166.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.99:1
Contrast with white3.01:1WCAG normal text: Fail
Contrast with black6.99:1WCAG normal text: AA
Greyscale equivalent#6B6B6B
Inverted#04CE00
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.01:1WCAG large text: AA
Contrast with black, large text6.99:1WCAG large text: AAA
Named colours
Hue familymagenta
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#35FF31
Analogous#9431FF, #FF319C
Triadic#FFFB31, #31FFFB
Split complementary#9CFF31, #31FF94
Tetradic#FF9431, #35FF31, #319CFF
Tints, shades & saturation
Channel breakdown
R251
G49
B255
Red251 (98.4%)
Green49 (19.2%)
Blue255 (100%)
Hue298.83°
Saturation (HSL)100%
Lightness59.61%
Dominant channelBlue
Hex per channelR FB · G 31 · B FF
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Harmonies
Similar named colours
Also reads as
FB31FF (chemical formula)
- Formula
- 392.104 g/mol
- 34 atoms
FB31FF has a molar mass of 392.104 g/mol, made up of 34 atoms across 2 elements: 3 × F, 31 × B.
Molar mass
Molar mass392.104 g/mol
Total atoms per molecule34
Distinct elements2
Mass of one molecule6.5110401 × 10^-22 g
Molecules per gram1.5358529 × 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
F14.5%
B85.5%
Fluorine (F × 3)56.994 g/mol, 14.535%
Boron (B × 31)335.11 g/mol, 85.465%
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