Recognised as Colour

#BF4047

#BF4047
Red
Dark
Nearest: Indian red

#BF4047 is a red with RGB values 191, 64, 71 and HSL 357°, 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 Indian red.

Colour values

#BF4047#BF4047

HEX#BF4047

RGBrgb(191, 64, 71)

RGB (0–1)0.749, 0.251, 0.2784

RGB percentages74.9%, 25.1%, 27.8%

HSLhsl(356.7, 49.8%, 50%)

HSV / HSBhsv(356.7, 66.5%, 74.9%)

CMYK0%, 66.5%, 62.8%, 25.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,533,831

CSS custom property--colour: #BF4047;

Brightness & contrast

Relative luminance0.15198WCAG 2.x, 0 is black and 1 is white

Perceived brightness117.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.2:1

Contrast with white5.2:1WCAG normal text: AA

Contrast with black4.04:1WCAG normal text: Fail

Greyscale equivalent#5C5C5C

Inverted#40BFB8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#615C46no red cones; affects about 1% of men; ΔE 54.7 from the original

Deuteranopia#817744no green cones; the most common form, about 1% of men; ΔE 55.3 from the original

Tritanopia#D12244no blue cones; rare, and affects men and women equally; ΔE 15 from the original

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

Contrast with white, large text5.2:1WCAG large text: AAA

Contrast with black, large text4.04:1WCAG large text: AA

Named colours

Indian red · ΔE 10.1 Brown · ΔE 10.5 Firebrick · ΔE 15.6 Crimson · ΔE 21.8 Light coral · ΔE 22.4 Salmon · ΔE 22.7

Nearest named CSS colourIndian red (#CD5C5C)ΔE 10.07, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#40BFB8

Analogous#BF4086, #BF7940

Triadic#47BF40, #4047BF

Split complementary#40BF79, #4086BF

Tetradic#86BF40, #40BFB8, #7940BF

Tints, shades & saturation

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

Lighter +40%#F2D9DA

Lighter +30%#E5B3B5

Lighter +20%#D98C91

Lighter +10%#CC666C

Darker −10%#993339

Darker −20%#73262B

Darker −30%#4C1A1C

Darker −40%#260D0E

More saturated +25%#DF202B

Less saturated −25%#9F6063

Channel breakdown

R191

G64

B71

Red191 (74.9%)

Green64 (25.1%)

Blue71 (27.8%)

Hue356.69°

Saturation (HSL)49.8%

Lightness50%

Dominant channelRed

Hex per channelR BF · G 40 · B 47

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Harmonies

Lighter and darker

Similar named colours

Also reads as

BF4047 (chemical formula)

Formula
76,895.716 g/mol
4048 atoms

BF4047 has a molar mass of 76,895.716 g/mol, made up of 4048 atoms across 2 elements: 1 × B, 4047 × F.

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Molar mass

Molar mass76,895.716 g/mol

Total atoms per molecule4048

Distinct elements2

Mass of one molecule1.2768834 × 10^-19 g

Molecules per gram7.8315686 × 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, 0.014%

Fluorine (F × 4047)76,884.906 g/mol, 99.986%

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Elements in this formula

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