Recognised as Colour
#BF4F40
- #BF4F40
- Red
- Dark
- Nearest: Indian red
#BF4F40 is a red with RGB values 191, 79, 64 and HSL 7°, 50%, 50%. It is a dark colour, so white text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Indian red.
Colour values
#BF4F40#BF4F40
HEX#BF4F40
RGBrgb(191, 79, 64)
RGB (0–1)0.749, 0.3098, 0.251
RGB percentages74.9%, 31%, 25.1%
HSLhsl(7.1, 49.8%, 50%)
HSV / HSBhsv(7.1, 66.5%, 74.9%)
CMYK0%, 58.6%, 66.5%, 25.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,537,664
CSS custom property--colour: #BF4F40;
Brightness & contrast
Relative luminance0.17038WCAG 2.x, 0 is black and 1 is white
Perceived brightness122.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.76:1
Contrast with white4.76:1WCAG normal text: AA
Contrast with black4.41:1WCAG normal text: Fail
Greyscale equivalent#666666
Inverted#40B0BF
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.76:1WCAG large text: AAA
Contrast with black, large text4.41:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#40B0BF
Analogous#BF4071, #BF8E40
Triadic#40BF4F, #4F40BF
Split complementary#40BF8E, #4071BF
Tetradic#71BF40, #40B0BF, #8E40BF
Tints, shades & saturation
Channel breakdown
R191
G79
B64
Red191 (74.9%)
Green79 (31%)
Blue64 (25.1%)
Hue7.09°
Saturation (HSL)49.8%
Lightness50%
Dominant channelRed
Hex per channelR BF · G 4F · B 40
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Also reads as
BF4F40 (chemical formula)
- Formula
- 846.722 g/mol
- 45 atoms
BF4F40 has a molar mass of 846.722 g/mol, made up of 45 atoms across 2 elements: 1 × B, 44 × F.
Molar mass
Molar mass846.722 g/mol
Total atoms per molecule45
Distinct elements2
Mass of one molecule1.406015 × 10^-21 g
Molecules per gram7.1122999 × 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
B1.3%
F98.7%
Boron (B)10.81 g/mol, 1.277%
Fluorine (F × 44)835.912 g/mol, 98.723%
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