Recognised as Colour
#FB1BFB
- #FB1BFB
- Magenta
- Dark
- Nearest: Fuchsia
#FB1BFB is a magenta with RGB values 251, 27, 251 and HSL 300°, 97%, 55%. It is a dark colour, so black text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Fuchsia.
Colour values
#FB1BFB#FB1BFB
HEX#FB1BFB
RGBrgb(251, 27, 251)
RGB (0–1)0.9843, 0.1059, 0.9843
RGB percentages98.4%, 10.6%, 98.4%
HSLhsl(300, 96.6%, 54.5%)
HSV / HSBhsv(300, 89.2%, 98.4%)
CMYK0%, 89.2%, 0%, 1.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,456,699
CSS custom property--colour: #FB1BFB;
Brightness & contrast
Relative luminance0.28258WCAG 2.x, 0 is black and 1 is white
Perceived brightness162.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.65:1
Contrast with white3.16:1WCAG normal text: Fail
Contrast with black6.65:1WCAG normal text: AA
Greyscale equivalent#5B5B5B
Inverted#04E404
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.16:1WCAG large text: AA
Contrast with black, large text6.65:1WCAG large text: AAA
Named colours
Hue familymagenta
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#1BFB1B
Analogous#8B1BFB, #FB1B8B
Triadic#FBFB1B, #1BFBFB
Split complementary#8BFB1B, #1BFB8B
Tetradic#FB8B1B, #1BFB1B, #1B8BFB
Tints, shades & saturation
Channel breakdown
R251
G27
B251
Red251 (98.4%)
Green27 (10.6%)
Blue251 (98.4%)
Hue300°
Saturation (HSL)96.55%
Lightness54.51%
Dominant channelRed and Blue
Hex per channelR FB · G 1B · B FB
Keep nerding
Every link below is a page Nerdulator can generate from what it already knows about this value.
Harmonies
Similar named colours
Also reads as
FB1BFB (chemical formula)
- Formula
- 70.426 g/mol
- 5 atoms
FB1BFB has a molar mass of 70.426 g/mol, made up of 5 atoms across 2 elements: 2 × F, 3 × B.
Molar mass
Molar mass70.426 g/mol
Total atoms per molecule5
Distinct elements2
Mass of one molecule1.1694512 × 10^-22 g
Molecules per gram8.5510192 × 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
F54%
B46%
Fluorine (F × 2)37.996 g/mol, 53.952%
Boron (B × 3)32.43 g/mol, 46.048%
Keep nerding
Every link below is a page Nerdulator can generate from what it already knows about this value.
Nerdulate something else
Nothing in mind? Surprise me · today’s page