Recognised as Colour

#BB91CA

#BB91CA
Violet
Dark
Nearest: Plum

#BB91CA is a violet with RGB values 187, 145, 202 and HSL 284°, 35%, 68%. It is a dark colour, so black text on it reaches 8:1 contrast (AAA for normal text). The nearest named colour is Plum.

Colour values

#BB91CA#BB91CA

HEX#BB91CA

RGBrgb(187, 145, 202)

RGB (0–1)0.7333, 0.5686, 0.7922

RGB percentages73.3%, 56.9%, 79.2%

HSLhsl(284.2, 35%, 68%)

HSV / HSBhsv(284.2, 28.2%, 79.2%)

CMYK7.4%, 28.2%, 0%, 20.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,292,554

CSS custom property--colour: #BB91CA;

Brightness & contrast

Relative luminance0.3508WCAG 2.x, 0 is black and 1 is white

Perceived brightness165.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 8.02:1

Contrast with white2.62:1WCAG normal text: Fail

Contrast with black8.02:1WCAG normal text: AAA

Greyscale equivalent#9E9E9E

Inverted#446E35

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#8A9DCCno red cones; affects about 1% of men; ΔE 21.8 from the original

Deuteranopia#93A1C8no green cones; the most common form, about 1% of men; ΔE 22.3 from the original

Tritanopia#BB98A5no blue cones; rare, and affects men and women equally; ΔE 24.1 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text2.62:1WCAG large text: Fail

Contrast with black, large text8.02:1WCAG large text: AAA

Named colours

Plum · ΔE 10.1 Thistle · ΔE 23.8 Medium purple · ΔE 30.8 Cornflower blue · ΔE 31.1 Light steelblue · ΔE 31.2 Pale violetred · ΔE 31.2

Nearest named CSS colourPlum (#DDA0DD)ΔE 10.08, a distinctly different colour

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#A0CA91

Analogous#9F91CA, #CA91BC

Triadic#CABB91, #91CABB

Split complementary#BCCA91, #91CA9F

Tetradic#CA9F91, #A0CA91, #91BCCA

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FBF8FC

Lighter +20%#E6D6EB

Lighter +10%#D0B3DB

Darker −10%#A66FB9

Darker −20%#8F50A5

Darker −30%#713F83

Darker −40%#532E61

More saturated +25%#C57DDE

Less saturated −25%#B1A5B6

Channel breakdown

R187

G145

B202

Red187 (73.3%)

Green145 (56.9%)

Blue202 (79.2%)

Hue284.21°

Saturation (HSL)34.97%

Lightness68.04%

Dominant channelBlue

Hex per channelR BB · G 91 · B CA

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Harmonies

Lighter and darker

Similar named colours

Also reads as

BB91Ca (chemical formula)

Formula
1,034.598 g/mol
93 atoms

BB91Ca has a molar mass of 1,034.598 g/mol, made up of 93 atoms across 2 elements: 92 × B, 1 × Ca.

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Molar mass

Molar mass1,034.598 g/mol

Total atoms per molecule93

Distinct elements2

Mass of one molecule1.7179904 × 10^-21 g

Molecules per gram5.8207543 × 10^20

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

B96.1%

Ca3.9%

Boron (B × 92)994.52 g/mol, 96.126%

Calcium (Ca)40.078 g/mol, 3.874%

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