Recognised as Colour

#B1868C

#B1868C
Red
Dark
Nearest: Rosy brown

#B1868C is a red with RGB values 177, 134, 140 and HSL 352°, 22%, 61%. It is a dark colour, so black text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Rosy brown.

Colour values

#B1868C#B1868C

HEX#B1868C

RGBrgb(177, 134, 140)

RGB (0–1)0.6941, 0.5255, 0.549

RGB percentages69.4%, 52.5%, 54.9%

HSLhsl(351.6, 21.6%, 61%)

HSV / HSBhsv(351.6, 24.3%, 69.4%)

CMYK0%, 24.3%, 20.9%, 30.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,634,316

CSS custom property--colour: #B1868C;

Brightness & contrast

Relative luminance0.28291WCAG 2.x, 0 is black and 1 is white

Perceived brightness148.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.66:1

Contrast with white3.15:1WCAG normal text: Fail

Contrast with black6.66:1WCAG normal text: AA

Greyscale equivalent#909090

Inverted#4E7973

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#8C8C8Cno red cones; affects about 1% of men; ΔE 17.8 from the original

Deuteranopia#96948Bno green cones; the most common form, about 1% of men; ΔE 18.4 from the original

Tritanopia#B98388no blue cones; rare, and affects men and women equally; ΔE 4.8 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text3.15:1WCAG large text: AA

Contrast with black, large text6.66:1WCAG large text: AAA

Named colours

Rosy brown · ΔE 4.9 Gray · ΔE 18.8 Dark grey · ΔE 19.9 Light pink · ΔE 23.5 Dim grey · ΔE 23.7 Thistle · ΔE 23.8

Nearest named CSS colourRosy brown (#BC8F8F)ΔE 4.87, a close match

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#86B1AB

Analogous#B186A2, #B19686

Triadic#8CB186, #868CB1

Split complementary#86B196, #86A2B1

Tetradic#A2B186, #86B1AB, #9686B1

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#EDE3E4

Lighter +20%#D9C4C7

Lighter +10%#C5A5A9

Darker −10%#9D676F

Darker −20%#7F5258

Darker −30%#603E43

Darker −40%#412A2D

More saturated +25%#CA6D7A

Less saturated −25%#9C9C9C

Channel breakdown

R177

G134

B140

Red177 (69.4%)

Green134 (52.5%)

Blue140 (54.9%)

Hue351.63°

Saturation (HSL)21.61%

Lightness60.98%

Dominant channelRed

Hex per channelR B1 · G 86 · B 8C

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Harmonies

Lighter and darker

Similar named colours

Also reads as

B1868C (chemical formula)

Formula
20,205.091 g/mol
1869 atoms

B1868C has a molar mass of 20,205.091 g/mol, made up of 1869 atoms across 2 elements: 1868 × B, 1 × C.

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Molar mass

Molar mass20,205.091 g/mol

Total atoms per molecule1869

Distinct elements2

Mass of one molecule3.3551343 × 10^-20 g

Molecules per gram2.9805066 × 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

B99.9%

C0.1%

Boron (B × 1868)20,193.08 g/mol, 99.941%

Carbon (C)12.011 g/mol, 0.059%

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