Recognised as Colour
#BF4240
- #BF4240
- Red
- Dark
- Nearest: Brown
#BF4240 is a red with RGB values 191, 66, 64 and HSL 1°, 50%, 50%. It is a dark colour, so white text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Brown.
Colour values
#BF4240#BF4240
HEX#BF4240
RGBrgb(191, 66, 64)
RGB (0–1)0.749, 0.2588, 0.251
RGB percentages74.9%, 25.9%, 25.1%
HSLhsl(0.9, 49.8%, 50%)
HSV / HSBhsv(0.9, 66.5%, 74.9%)
CMYK0%, 65.4%, 66.5%, 25.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,534,336
CSS custom property--colour: #BF4240;
Brightness & contrast
Relative luminance0.15343WCAG 2.x, 0 is black and 1 is white
Perceived brightness118 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.16:1
Contrast with white5.16:1WCAG normal text: AA
Contrast with black4.07:1WCAG normal text: Fail
Greyscale equivalent#5C5C5C
Inverted#40BDBF
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.16:1WCAG large text: AAA
Contrast with black, large text4.07:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#40BDBF
Analogous#BF407E, #BF8240
Triadic#40BF42, #4240BF
Split complementary#40BF82, #407DBF
Tetradic#7DBF40, #40BDBF, #8240BF
Tints, shades & saturation
Channel breakdown
R191
G66
B64
Red191 (74.9%)
Green66 (25.9%)
Blue64 (25.1%)
Hue0.94°
Saturation (HSL)49.8%
Lightness50%
Dominant channelRed
Hex per channelR BF · G 42 · B 40
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Also reads as
BF4240 (chemical formula)
- Formula
- 80,562.33 g/mol
- 4241 atoms
BF4240 has a molar mass of 80,562.33 g/mol, made up of 4241 atoms across 2 elements: 1 × B, 4240 × F.
Molar mass
Molar mass80,562.33 g/mol
Total atoms per molecule4241
Distinct elements2
Mass of one molecule1.337769 × 10^-19 g
Molecules per gram7.4751323 × 10^18
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%
F100%
Boron (B)10.81 g/mol, 0.013%
Fluorine (F × 4240)80,551.52 g/mol, 99.987%
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