Recognised as Colour

#BF2122

#BF2122
Red
Dark
Nearest: Firebrick

#BF2122 is a red with RGB values 191, 33, 34 and HSL 360°, 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

#BF2122#BF2122

HEX#BF2122

RGBrgb(191, 33, 34)

RGB (0–1)0.749, 0.1294, 0.1333

RGB percentages74.9%, 12.9%, 13.3%

HSLhsl(359.6, 70.5%, 43.9%)

HSV / HSBhsv(359.6, 82.7%, 74.9%)

CMYK0%, 82.7%, 82.2%, 25.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,525,858

CSS custom property--colour: #BF2122;

Brightness & contrast

Relative luminance0.1228WCAG 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 6.08:1

Contrast with white6.08:1WCAG normal text: AA

Contrast with black3.46:1WCAG normal text: Fail

Greyscale equivalent#434343

Inverted#40DEDD

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#564C20no red cones; affects about 1% of men; ΔE 64.3 from the original

Deuteranopia#7C6E19no green cones; the most common form, about 1% of men; ΔE 64.5 from the original

Tritanopia#D30024no blue cones; rare, and affects men and women equally; ΔE 10.7 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text6.08:1WCAG large text: AAA

Contrast with black, large text3.46:1WCAG large text: AA

Named colours

Firebrick · ΔE 5.8 Crimson · ΔE 14.3 Brown · ΔE 15.2 Dark red · ΔE 16.3 Maroon · ΔE 20.3 Tomato · ΔE 21.3

Nearest named CSS colourFirebrick (#B22222)ΔE 5.84, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#21BFBE

Analogous#BF2171, #BF6F21

Triadic#22BF21, #2122BF

Split complementary#21BF6F, #2171BF

Tetradic#71BF21, #21BFBE, #6F21BF

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#F3B9B9

Lighter +30%#EB8E8E

Lighter +20%#E46263

Lighter +10%#DC3738

Darker −10%#94191A

Darker −20%#681213

Darker −30%#3D0A0B

Darker −40%#110303

More saturated +25%#DB0506

Less saturated −25%#A33D3E

Channel breakdown

R191

G33

B34

Red191 (74.9%)

Green33 (12.9%)

Blue34 (13.3%)

Hue359.62°

Saturation (HSL)70.54%

Lightness43.92%

Dominant channelRed

Hex per channelR BF · G 21 · B 22

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Harmonies

Lighter and darker

Similar named colours

Also reads as

BF2122 (chemical formula)

Formula
40,324.566 g/mol
2123 atoms

BF2122 has a molar mass of 40,324.566 g/mol, made up of 2123 atoms across 2 elements: 1 × B, 2122 × F.

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Molar mass

Molar mass40,324.566 g/mol

Total atoms per molecule2123

Distinct elements2

Mass of one molecule6.6960517 × 10^-20 g

Molecules per gram1.4934174 × 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 × 2122)40,313.756 g/mol, 99.973%

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