Recognised as Colour
#BF256B
- #BF256B
- Red
- Dark
- Nearest: Medium violet red
#BF256B is a red with RGB values 191, 37, 107 and HSL 333°, 68%, 45%. It is a dark colour, so white text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Medium violet red.
Colour values
#BF256B#BF256B
HEX#BF256B
RGBrgb(191, 37, 107)
RGB (0–1)0.749, 0.1451, 0.4196
RGB percentages74.9%, 14.5%, 42%
HSLhsl(332.7, 67.5%, 44.7%)
HSV / HSBhsv(332.7, 80.6%, 74.9%)
CMYK0%, 80.6%, 44%, 25.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,526,955
CSS custom property--colour: #BF256B;
Brightness & contrast
Relative luminance0.13461WCAG 2.x, 0 is black and 1 is white
Perceived brightness114.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.69:1
Contrast with white5.69:1WCAG normal text: AA
Contrast with black3.69:1WCAG normal text: Fail
Greyscale equivalent#4B4B4B
Inverted#40DA94
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.69:1WCAG large text: AAA
Contrast with black, large text3.69:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#25BF79
Analogous#BF25B8, #BF2C25
Triadic#6BBF25, #256BBF
Split complementary#25BF2C, #25B8BF
Tetradic#B8BF25, #25BF79, #2C25BF
Tints, shades & saturation
Channel breakdown
R191
G37
B107
Red191 (74.9%)
Green37 (14.5%)
Blue107 (42%)
Hue332.73°
Saturation (HSL)67.54%
Lightness44.71%
Dominant channelRed
Hex per channelR BF · G 25 · B 6B
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Harmonies
Similar named colours
Also reads as
BF256B (chemical formula)
- Formula
- 4,885.108 g/mol
- 258 atoms
BF256B has a molar mass of 4,885.108 g/mol, made up of 258 atoms across 2 elements: 2 × B, 256 × F.
Molar mass
Molar mass4,885.108 g/mol
Total atoms per molecule258
Distinct elements2
Mass of one molecule8.1119127 × 10^-21 g
Molecules per gram1.2327549 × 10^20
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
B0.4%
F99.6%
Boron (B × 2)21.62 g/mol, 0.443%
Fluorine (F × 256)4,863.488 g/mol, 99.557%
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