Recognised as Colour

#BB1B64

#BB1B64
Red
Dark
Nearest: Medium violet red

#BB1B64 is a red with RGB values 187, 27, 100 and HSL 333°, 75%, 42%. It is a dark colour, so white text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Medium violet red.

Colour values

#BB1B64#BB1B64

HEX#BB1B64

RGBrgb(187, 27, 100)

RGB (0–1)0.7333, 0.1059, 0.3922

RGB percentages73.3%, 10.6%, 39.2%

HSLhsl(332.6, 74.8%, 42%)

HSV / HSBhsv(332.6, 85.6%, 73.3%)

CMYK0%, 85.6%, 46.5%, 26.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,262,244

CSS custom property--colour: #BB1B64;

Brightness & contrast

Relative luminance0.12269WCAG 2.x, 0 is black and 1 is white

Perceived brightness109.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.08:1

Contrast with white6.08:1WCAG normal text: AA

Contrast with black3.45:1WCAG normal text: Fail

Greyscale equivalent#424242

Inverted#44E49B

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#464F66no red cones; affects about 1% of men; ΔE 63.8 from the original

Deuteranopia#706D60no green cones; the most common form, about 1% of men; ΔE 65.8 from the original

Tritanopia#CB003Eno blue cones; rare, and affects men and women equally; ΔE 26.6 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text6.08:1WCAG large text: AAA

Contrast with black, large text3.45:1WCAG large text: AA

Named colours

Medium violet red · ΔE 17.4 Deep pink · ΔE 25.8 Hot pink · ΔE 26.3 Pale violetred · ΔE 26.4 Indian red · ΔE 31.2 Brown · ΔE 33.6

Nearest named CSS colourMedium violet red (#C71585)ΔE 17.37, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1BBB72

Analogous#BB1BB4, #BB221B

Triadic#64BB1B, #1B64BB

Split complementary#1BBB22, #1BB4BB

Tetradic#B4BB1B, #1BBB72, #221BBB

Tints, shades & saturation

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

Lighter +40%#F3AFCE

Lighter +30%#ED82B3

Lighter +20%#E75598

Lighter +10%#E0297C

Darker −10%#8E154C

Darker −20%#620E34

Darker −30%#35081D

Darker −40%#090105

More saturated +25%#D60062

Less saturated −25%#A03666

Channel breakdown

R187

G27

B100

Red187 (73.3%)

Green27 (10.6%)

Blue100 (39.2%)

Hue332.63°

Saturation (HSL)74.77%

Lightness41.96%

Dominant channelRed

Hex per channelR BB · G 1B · B 64

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Harmonies

Lighter and darker

Similar named colours

Also reads as

BB1B64 (chemical formula)

Formula
713.46 g/mol
66 atoms

BB1B64 has a molar mass of 713.46 g/mol, made up of 66 atoms across 1 element: 66 × B.

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Molar mass

Molar mass713.46 g/mol

Total atoms per molecule66

Distinct elements1

Mass of one molecule1.1847282 × 10^-21 g

Molecules per gram8.4407546 × 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

B100%

Boron (B × 66)713.46 g/mol, 100%

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Elements in this formula

Boron

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