Recognised as Colour

#B543CF

#B543CF
Violet
Dark
Nearest: Medium orchid

#B543CF is a violet with RGB values 181, 67, 207 and HSL 289°, 59%, 54%. It is a dark colour, so black text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Medium orchid.

Colour values

#B543CF#B543CF

HEX#B543CF

RGBrgb(181, 67, 207)

RGB (0–1)0.7098, 0.2627, 0.8118

RGB percentages71%, 26.3%, 81.2%

HSLhsl(288.9, 59.3%, 53.7%)

HSV / HSBhsv(288.9, 67.6%, 81.2%)

CMYK12.6%, 67.6%, 0%, 18.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,879,375

CSS custom property--colour: #B543CF;

Brightness & contrast

Relative luminance0.18343WCAG 2.x, 0 is black and 1 is white

Perceived brightness131.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.67:1

Contrast with white4.5:1WCAG normal text: Fail

Contrast with black4.67:1WCAG normal text: AA

Greyscale equivalent#656565

Inverted#4ABC30

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#056FD3no red cones; affects about 1% of men; ΔE 53.1 from the original

Deuteranopia#4E7BCCno green cones; the most common form, about 1% of men; ΔE 55.4 from the original

Tritanopia#B55C84no blue cones; rare, and affects men and women equally; ΔE 51.5 from the original

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

Contrast with white, large text4.5:1WCAG large text: AA

Contrast with black, large text4.67:1WCAG large text: AAA

Named colours

Medium orchid · ΔE 7.9 Dark orchid · ΔE 11.1 Dark magenta · ΔE 21.4 Orchid · ΔE 23.2 Dark violet · ΔE 24.7 Blue violet · ΔE 25.4

Nearest named CSS colourMedium orchid (#BA55D3)ΔE 7.86, clearly different but related

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#5DCF43

Analogous#6F43CF, #CF43A3

Triadic#CFB543, #43CFB5

Split complementary#A3CF43, #43CF6F

Tetradic#CF6F43, #5DCF43, #43A3CF

Tints, shades & saturation

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

Lighter +40%#F5E6F8

Lighter +30%#E5BDEE

Lighter +20%#D594E4

Lighter +10%#C56CD9

Darker −10%#992DB2

Darker −20%#762389

Darker −30%#531960

Darker −40%#300E38

More saturated +25%#C825ED

Less saturated −25%#A261B2

Channel breakdown

R181

G67

B207

Red181 (71%)

Green67 (26.3%)

Blue207 (81.2%)

Hue288.86°

Saturation (HSL)59.32%

Lightness53.73%

Dominant channelBlue

Hex per channelR B5 · G 43 · B CF

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Harmonies

Lighter and darker

Similar named colours

Also reads as

B543CF (chemical formula)

Formula
5,900.839 g/mol
545 atoms

B543CF has a molar mass of 5,900.839 g/mol, made up of 545 atoms across 3 elements: 543 × B, 1 × C, 1 × F.

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Molar mass

Molar mass5,900.839 g/mol

Total atoms per molecule545

Distinct elements3

Mass of one molecule9.7985737 × 10^-21 g

Molecules per gram1.0205567 × 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

B99.5%

C0.2%

F0.3%

Boron (B × 543)5,869.83 g/mol, 99.474%

Carbon (C)12.011 g/mol, 0.204%

Fluorine (F)18.998 g/mol, 0.322%

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