Recognised as Colour

#B181FE

#B181FE
Violet
Dark
Nearest: Medium purple

#B181FE is a violet with RGB values 177, 129, 254 and HSL 263°, 98%, 75%. It is a dark colour, so black text on it reaches 7.4:1 contrast (AAA for normal text). The nearest named colour is Medium purple.

Colour values

#B181FE#B181FE

HEX#B181FE

RGBrgb(177, 129, 254)

RGB (0–1)0.6941, 0.5059, 0.9961

RGB percentages69.4%, 50.6%, 99.6%

HSLhsl(263, 98.4%, 75.1%)

HSV / HSBhsv(263, 49.2%, 99.6%)

CMYK30.3%, 49.2%, 0%, 0.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,633,150

CSS custom property--colour: #B181FE;

Brightness & contrast

Relative luminance0.32203WCAG 2.x, 0 is black and 1 is white

Perceived brightness162.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 7.44:1

Contrast with white2.82:1WCAG normal text: Fail

Contrast with black7.44:1WCAG normal text: AAA

Greyscale equivalent#949494

Inverted#4E7E01

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#579AFFno red cones; affects about 1% of men; ΔE 33.7 from the original

Deuteranopia#6399FBno green cones; the most common form, about 1% of men; ΔE 32.4 from the original

Tritanopia#A198B4no blue cones; rare, and affects men and women equally; ΔE 54.9 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text2.82:1WCAG large text: Fail

Contrast with black, large text7.44:1WCAG large text: AAA

Named colours

Medium purple · ΔE 12.4 Medium slateblue · ΔE 15.1 Slate blue · ΔE 19.8 Medium orchid · ΔE 20.1 Violet · ΔE 23.6 Orchid · ΔE 24.3

Nearest named CSS colourMedium purple (#9370DB)ΔE 12.36, a distinctly different colour

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#CEFE81

Analogous#8190FE, #EF81FE

Triadic#FEB181, #81FEB1

Split complementary#FEF081, #8FFE81

Tetradic#FE8190, #CEFE81, #81FEEF

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFFFFF

Lighter +20%#F0E6FF

Lighter +10%#D0B4FE

Darker −10%#924EFE

Darker −20%#721CFD

Darker −30%#5902E4

Darker −40%#4501B2

More saturated +25%#B180FF

Less saturated −25%#B591EE

Channel breakdown

R177

G129

B254

Red177 (69.4%)

Green129 (50.6%)

Blue254 (99.6%)

Hue263.04°

Saturation (HSL)98.43%

Lightness75.1%

Dominant channelBlue

Hex per channelR B1 · G 81 · B FE

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Harmonies

Lighter and darker

Similar named colours

Also reads as

B181Fe (chemical formula)

Formula
2,012.455 g/mol
182 atoms

B181Fe has a molar mass of 2,012.455 g/mol, made up of 182 atoms across 2 elements: 181 × B, 1 × Fe.

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Molar mass

Molar mass2,012.455 g/mol

Total atoms per molecule182

Distinct elements2

Mass of one molecule3.3417601 × 10^-21 g

Molecules per gram2.992435 × 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

B97.2%

Fe2.8%

Boron (B × 181)1,956.61 g/mol, 97.225%

Iron (Fe)55.845 g/mol, 2.775%

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