Recognised as Colour

#B16971

#B16971
Red
Dark
Nearest: Rosy brown

#B16971 is a red with RGB values 177, 105, 113 and HSL 353°, 32%, 55%. It is a dark colour, so black text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Rosy brown.

Colour values

#B16971#B16971

HEX#B16971

RGBrgb(177, 105, 113)

RGB (0–1)0.6941, 0.4118, 0.4431

RGB percentages69.4%, 41.2%, 44.3%

HSLhsl(353.3, 31.6%, 55.3%)

HSV / HSBhsv(353.3, 40.7%, 69.4%)

CMYK0%, 40.7%, 36.2%, 30.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,626,865

CSS custom property--colour: #B16971;

Brightness & contrast

Relative luminance0.20643WCAG 2.x, 0 is black and 1 is white

Perceived brightness131.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.13:1

Contrast with white4.09:1WCAG normal text: Fail

Contrast with black5.13:1WCAG normal text: AA

Greyscale equivalent#797979

Inverted#4E968E

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#767571no red cones; affects about 1% of men; ΔE 30.9 from the original

Deuteranopia#888370no green cones; the most common form, about 1% of men; ΔE 31.5 from the original

Tritanopia#BD626Cno blue cones; rare, and affects men and women equally; ΔE 8.3 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text4.09:1WCAG large text: AA

Contrast with black, large text5.13:1WCAG large text: AAA

Named colours

Rosy brown · ΔE 16.9 Pale violetred · ΔE 19.2 Indian red · ΔE 20.7 Light coral · ΔE 22.1 Dark salmon · ΔE 26.3 Light pink · ΔE 28.7

Nearest named CSS colourRosy brown (#BC8F8F)ΔE 16.92, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#69B1A9

Analogous#B16995, #B18569

Triadic#71B169, #6971B1

Split complementary#69B185, #6995B1

Tetradic#95B169, #69B1A9, #8569B1

Tints, shades & saturation

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

Lighter +40%#F7EFF0

Lighter +30%#E5CED0

Lighter +20%#D4ACB1

Lighter +10%#C28B91

Darker −10%#984F57

Darker −20%#763E44

Darker −30%#552C31

Darker −40%#331B1D

More saturated +25%#CE4D5B

Less saturated −25%#958687

Channel breakdown

R177

G105

B113

Red177 (69.4%)

Green105 (41.2%)

Blue113 (44.3%)

Hue353.33°

Saturation (HSL)31.58%

Lightness55.29%

Dominant channelRed

Hex per channelR B1 · G 69 · B 71

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Harmonies

Lighter and darker

Similar named colours

Also reads as

B16971 (chemical formula)

Formula
183,456.51 g/mol
16971 atoms

B16971 has a molar mass of 183,456.51 g/mol, made up of 16971 atoms across 1 element: 16971 × B.

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Molar mass

Molar mass183,456.51 g/mol

Total atoms per molecule16971

Distinct elements1

Mass of one molecule3.046367 × 10^-19 g

Molecules per gram3.2825986 × 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 × 16971)183,456.51 g/mol, 100%

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Elements in this formula

Boron

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