Recognised as Colour

#B4879B

#B4879B
Red
Dark
Nearest: Rosy brown

#B4879B is a red with RGB values 180, 135, 155 and HSL 333°, 23%, 62%. It is a dark colour, so black text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Rosy brown.

Colour values

#B4879B#B4879B

HEX#B4879B

RGBrgb(180, 135, 155)

RGB (0–1)0.7059, 0.5294, 0.6078

RGB percentages70.6%, 52.9%, 60.8%

HSLhsl(333.3, 23.1%, 61.8%)

HSV / HSBhsv(333.3, 25%, 70.6%)

CMYK0%, 25%, 13.9%, 29.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,831,195

CSS custom property--colour: #B4879B;

Brightness & contrast

Relative luminance0.29398WCAG 2.x, 0 is black and 1 is white

Perceived brightness152.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.88:1

Contrast with white3.05:1WCAG normal text: Fail

Contrast with black6.88:1WCAG normal text: AA

Greyscale equivalent#929292

Inverted#4B7864

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#8B8F9Cno red cones; affects about 1% of men; ΔE 19.5 from the original

Deuteranopia#95969Ano green cones; the most common form, about 1% of men; ΔE 20.1 from the original

Tritanopia#BB868Eno blue cones; rare, and affects men and women equally; ΔE 7.8 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text3.05:1WCAG large text: AA

Contrast with black, large text6.88:1WCAG large text: AAA

Named colours

Rosy brown · ΔE 11.3 Thistle · ΔE 20.9 Gray · ΔE 22.1 Dark grey · ΔE 22.3 Light pink · ΔE 23.1 Pink · ΔE 23.9

Nearest named CSS colourRosy brown (#BC8F8F)ΔE 11.32, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#87B4A0

Analogous#B487B2, #B48A87

Triadic#9BB487, #879BB4

Split complementary#87B48A, #87B2B4

Tetradic#B2B487, #87B4A0, #8A87B4

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#EFE5E9

Lighter +20%#DBC6CF

Lighter +10%#C8A6B5

Darker −10%#A06881

Darker −20%#835268

Darker −30%#643E4F

Darker −40%#442B36

More saturated +25%#CC6F98

Less saturated −25%#9E9E9E

Channel breakdown

R180

G135

B155

Red180 (70.6%)

Green135 (52.9%)

Blue155 (60.8%)

Hue333.33°

Saturation (HSL)23.08%

Lightness61.76%

Dominant channelRed

Hex per channelR B4 · G 87 · B 9B

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Harmonies

Lighter and darker

Similar named colours

Also reads as

B4879B (chemical formula)

Formula
52,752.8 g/mol
4880 atoms

B4879B has a molar mass of 52,752.8 g/mol, made up of 4880 atoms across 1 element: 4880 × B.

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Molar mass

Molar mass52,752.8 g/mol

Total atoms per molecule4880

Distinct elements1

Mass of one molecule8.7598085 × 10^-20 g

Molecules per gram1.1415775 × 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%

Boron (B × 4880)52,752.8 g/mol, 100%

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Elements in this formula

Boron

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