Recognised as Colour
#BF2124
- #BF2124
- Red
- Dark
- Nearest: Firebrick
#BF2124 is a red with RGB values 191, 33, 36 and HSL 359°, 71%, 44%. It is a dark colour, so white text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Firebrick.
Colour values
#BF2124#BF2124
HEX#BF2124
RGBrgb(191, 33, 36)
RGB (0–1)0.749, 0.1294, 0.1412
RGB percentages74.9%, 12.9%, 14.1%
HSLhsl(358.9, 70.5%, 43.9%)
HSV / HSBhsv(358.9, 82.7%, 74.9%)
CMYK0%, 82.7%, 81.2%, 25.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,525,860
CSS custom property--colour: #BF2124;
Brightness & contrast
Relative luminance0.12291WCAG 2.x, 0 is black and 1 is white
Perceived brightness108.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.07:1
Contrast with white6.07:1WCAG normal text: AA
Contrast with black3.46:1WCAG normal text: Fail
Greyscale equivalent#434343
Inverted#40DEDB
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.07:1WCAG large text: AAA
Contrast with black, large text3.46:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#21BFBC
Analogous#BF2173, #BF6D21
Triadic#24BF21, #2124BF
Split complementary#21BF6D, #2173BF
Tetradic#73BF21, #21BFBC, #6D21BF
Tints, shades & saturation
Channel breakdown
R191
G33
B36
Red191 (74.9%)
Green33 (12.9%)
Blue36 (14.1%)
Hue358.86°
Saturation (HSL)70.54%
Lightness43.92%
Dominant channelRed
Hex per channelR BF · G 21 · B 24
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Also reads as
BF2124 (chemical formula)
- Formula
- 40,362.562 g/mol
- 2125 atoms
BF2124 has a molar mass of 40,362.562 g/mol, made up of 2125 atoms across 2 elements: 1 × B, 2124 × F.
Molar mass
Molar mass40,362.562 g/mol
Total atoms per molecule2125
Distinct elements2
Mass of one molecule6.7023611 × 10^-20 g
Molecules per gram1.4920115 × 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
B0%
F100%
Boron (B)10.81 g/mol, 0.027%
Fluorine (F × 2124)40,351.752 g/mol, 99.973%
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