Recognised as Colour

#B181FC

#B181FC
Violet
Dark
Nearest: Medium purple

#B181FC is a violet with RGB values 177, 129, 252 and HSL 263°, 95%, 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

#B181FC#B181FC

HEX#B181FC

RGBrgb(177, 129, 252)

RGB (0–1)0.6941, 0.5059, 0.9882

RGB percentages69.4%, 50.6%, 98.8%

HSLhsl(263.4, 95.3%, 74.7%)

HSV / HSBhsv(263.4, 48.8%, 98.8%)

CMYK29.8%, 48.8%, 0%, 1.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,633,148

CSS custom property--colour: #B181FC;

Brightness & contrast

Relative luminance0.32076WCAG 2.x, 0 is black and 1 is white

Perceived brightness162.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 7.42:1

Contrast with white2.83:1WCAG normal text: Fail

Contrast with black7.42:1WCAG normal text: AAA

Greyscale equivalent#949494

Inverted#4E7E03

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5899FFno red cones; affects about 1% of men; ΔE 32.5 from the original

Deuteranopia#6499F9no green cones; the most common form, about 1% of men; ΔE 32.4 from the original

Tritanopia#A298B3no blue cones; rare, and affects men and women equally; ΔE 54.3 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text2.83:1WCAG large text: Fail

Contrast with black, large text7.42:1WCAG large text: AAA

Named colours

Medium purple · ΔE 11.6 Medium slateblue · ΔE 15.6 Slate blue · ΔE 19.7 Medium orchid · ΔE 20.1 Violet · ΔE 23.2 Orchid · ΔE 23.8

Nearest named CSS colourMedium purple (#9370DB)ΔE 11.61, a distinctly different colour

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#CCFC81

Analogous#818EFC, #EF81FC

Triadic#FCB181, #81FCB1

Split complementary#FCEF81, #8EFC81

Tetradic#FC818E, #CCFC81, #81FCEF

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFFFFF

Lighter +20%#EFE5FE

Lighter +10%#D0B3FD

Darker −10%#924FFB

Darker −20%#731DFA

Darker −30%#5A05DF

Darker −40%#4604AD

More saturated +25%#B07EFF

Less saturated −25%#B591EC

Channel breakdown

R177

G129

B252

Red177 (69.4%)

Green129 (50.6%)

Blue252 (98.8%)

Hue263.41°

Saturation (HSL)95.35%

Lightness74.71%

Dominant channelBlue

Hex per channelR B1 · G 81 · B FC

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Harmonies

Lighter and darker

Similar named colours

Also reads as

B181FC (chemical formula)

Formula
1,987.619 g/mol
183 atoms

B181FC has a molar mass of 1,987.619 g/mol, made up of 183 atoms across 3 elements: 181 × B, 1 × F, 1 × C.

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Molar mass

Molar mass1,987.619 g/mol

Total atoms per molecule183

Distinct elements3

Mass of one molecule3.300519 × 10^-21 g

Molecules per gram3.0298265 × 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

B98.4%

F1%

C0.6%

Boron (B × 181)1,956.61 g/mol, 98.44%

Fluorine (F)18.998 g/mol, 0.956%

Carbon (C)12.011 g/mol, 0.604%

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