Recognised as Colour

#B3736F

#B3736F
Red
Dark
Nearest: Rosy brown

#B3736F is a red with RGB values 179, 115, 111 and HSL 4°, 31%, 57%. It is a dark colour, so black text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Rosy brown.

Colour values

#B3736F#B3736F

HEX#B3736F

RGBrgb(179, 115, 111)

RGB (0–1)0.702, 0.451, 0.4353

RGB percentages70.2%, 45.1%, 43.5%

HSLhsl(3.5, 30.9%, 56.9%)

HSV / HSBhsv(3.5, 38%, 70.2%)

CMYK0%, 35.8%, 38%, 29.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,760,495

CSS custom property--colour: #B3736F;

Brightness & contrast

Relative luminance0.22993WCAG 2.x, 0 is black and 1 is white

Perceived brightness136.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.6:1

Contrast with white3.75:1WCAG normal text: Fail

Contrast with black5.6:1WCAG normal text: AA

Greyscale equivalent#808080

Inverted#4C8C90

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#807C6Eno red cones; affects about 1% of men; ΔE 26.4 from the original

Deuteranopia#90896Eno green cones; the most common form, about 1% of men; ΔE 27 from the original

Tritanopia#C06B72no blue cones; rare, and affects men and women equally; ΔE 9.9 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text3.75:1WCAG large text: AA

Contrast with black, large text5.6:1WCAG large text: AAA

Named colours

Rosy brown · ΔE 13 Dark salmon · ΔE 21.3 Indian red · ΔE 22.2 Light coral · ΔE 22.3 Pale violetred · ΔE 24.8 Sienna · ΔE 25.9

Nearest named CSS colourRosy brown (#BC8F8F)ΔE 13.04, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#6FAFB3

Analogous#B36F8D, #B3956F

Triadic#6FB373, #736FB3

Split complementary#6FB395, #6F8DB3

Tetradic#8DB36F, #6FAFB3, #956FB3

Tints, shades & saturation

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

Lighter +40%#F9F5F5

Lighter +30%#E8D4D3

Lighter +20%#D6B4B2

Lighter +10%#C59390

Darker −10%#9C5753

Darker −20%#7B4441

Darker −30%#5A322F

Darker −40%#381F1E

More saturated +25%#CF5B53

Less saturated −25%#978B8B

Channel breakdown

R179

G115

B111

Red179 (70.2%)

Green115 (45.1%)

Blue111 (43.5%)

Hue3.53°

Saturation (HSL)30.91%

Lightness56.86%

Dominant channelRed

Hex per channelR B3 · G 73 · B 6F

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Harmonies

Lighter and darker

Similar named colours

Also reads as

B3736F (chemical formula)

Formula
40,405.158 g/mol
3737 atoms

B3736F has a molar mass of 40,405.158 g/mol, made up of 3737 atoms across 2 elements: 3736 × B, 1 × F.

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Molar mass

Molar mass40,405.158 g/mol

Total atoms per molecule3737

Distinct elements2

Mass of one molecule6.7094343 × 10^-20 g

Molecules per gram1.4904386 × 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

B100%

F0%

Boron (B × 3736)40,386.16 g/mol, 99.953%

Fluorine (F)18.998 g/mol, 0.047%

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