Recognised as Colour

#BB7171

#BB7171
Red
Dark
Nearest: Rosy brown

#BB7171 is a red with RGB values 187, 113, 113 and HSL 0°, 35%, 59%. It is a dark colour, so black text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Rosy brown.

Colour values

#BB7171#BB7171

HEX#BB7171

RGBrgb(187, 113, 113)

RGB (0–1)0.7333, 0.4431, 0.4431

RGB percentages73.3%, 44.3%, 44.3%

HSLhsl(0, 35.2%, 58.8%)

HSV / HSBhsv(0, 39.6%, 73.3%)

CMYK0%, 39.6%, 39.6%, 26.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,284,273

CSS custom property--colour: #BB7171;

Brightness & contrast

Relative luminance0.23567WCAG 2.x, 0 is black and 1 is white

Perceived brightness139.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.71:1

Contrast with white3.68:1WCAG normal text: Fail

Contrast with black5.71:1WCAG normal text: AA

Greyscale equivalent#818181

Inverted#448E8E

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#807C71no red cones; affects about 1% of men; ΔE 30.6 from the original

Deuteranopia#928B70no green cones; the most common form, about 1% of men; ΔE 31.4 from the original

Tritanopia#C96872no blue cones; rare, and affects men and women equally; ΔE 10.2 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text3.68:1WCAG large text: AA

Contrast with black, large text5.71:1WCAG large text: AAA

Named colours

Rosy brown · ΔE 15.7 Indian red · ΔE 18.5 Light coral · ΔE 18.6 Dark salmon · ΔE 20.8 Pale violetred · ΔE 20.9 Salmon · ΔE 25.8

Nearest named CSS colourRosy brown (#BC8F8F)ΔE 15.72, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#71BBBB

Analogous#BB7196, #BB9671

Triadic#71BB71, #7171BB

Split complementary#71BB96, #7196BB

Tetradic#96BB71, #71BBBB, #9671BB

Tints, shades & saturation

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

Lighter +40%#FDFBFB

Lighter +30%#EDD8D8

Lighter +20%#DCB6B6

Lighter +10%#CC9393

Darker −10%#A85151

Darker −20%#864040

Darker −30%#633030

Darker −40%#411F1F

More saturated +25%#D55757

Less saturated −25%#A18B8B

Channel breakdown

R187

G113

B113

Red187 (73.3%)

Green113 (44.3%)

Blue113 (44.3%)

Hue0°

Saturation (HSL)35.24%

Lightness58.82%

Dominant channelRed

Hex per channelR BB · G 71 · B 71

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Harmonies

Lighter and darker

Similar named colours

Also reads as

BB7171 (chemical formula)

Formula
77,529.32 g/mol
7172 atoms

BB7171 has a molar mass of 77,529.32 g/mol, made up of 7172 atoms across 1 element: 7172 × B.

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Molar mass

Molar mass77,529.32 g/mol

Total atoms per molecule7172

Distinct elements1

Mass of one molecule1.2874046 × 10^-19 g

Molecules per gram7.7675656 × 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

B100%

Boron (B × 7172)77,529.32 g/mol, 100%

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Elements in this formula

Boron

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