Recognised as Colour
#F551B2
- #F551B2
- Magenta
- Dark
- Nearest: Hot pink
#F551B2 is a magenta with RGB values 245, 81, 178 and HSL 325°, 89%, 64%. It is a dark colour, so black text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Hot pink.
Colour values
#F551B2#F551B2
HEX#F551B2
RGBrgb(245, 81, 178)
RGB (0–1)0.9608, 0.3176, 0.698
RGB percentages96.1%, 31.8%, 69.8%
HSLhsl(324.5, 89.1%, 63.9%)
HSV / HSBhsv(324.5, 66.9%, 96.1%)
CMYK0%, 66.9%, 27.3%, 3.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,077,234
CSS custom property--colour: #F551B2;
Brightness & contrast
Relative luminance0.28512WCAG 2.x, 0 is black and 1 is white
Perceived brightness159.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.7:1
Contrast with white3.13:1WCAG normal text: Fail
Contrast with black6.7:1WCAG normal text: AA
Greyscale equivalent#7B7B7B
Inverted#0AAE4D
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.13:1WCAG large text: AA
Contrast with black, large text6.7:1WCAG large text: AAA
Named colours
Hue familymagenta
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#51F594
Analogous#E651F5, #F55160
Triadic#B2F551, #51B2F5
Split complementary#60F551, #51F5E6
Tetradic#F5E651, #51F594, #5160F5
Tints, shades & saturation
Channel breakdown
R245
G81
B178
Red245 (96.1%)
Green81 (31.8%)
Blue178 (69.8%)
Hue324.51°
Saturation (HSL)89.13%
Lightness63.92%
Dominant channelRed
Hex per channelR F5 · G 51 · B B2
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Also reads as
F551B2 (chemical formula)
- Formula
- 10,489.518 g/mol
- 553 atoms
F551B2 has a molar mass of 10,489.518 g/mol, made up of 553 atoms across 2 elements: 551 × F, 2 × B.
Molar mass
Molar mass10,489.518 g/mol
Total atoms per molecule553
Distinct elements2
Mass of one molecule1.7418254 × 10^-20 g
Molecules per gram5.7411034 × 10^19
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
F99.8%
B0.2%
Fluorine (F × 551)10,467.898 g/mol, 99.794%
Boron (B × 2)21.62 g/mol, 0.206%
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