Recognised as Colour

#B545DB

#B545DB
Violet
Dark
Nearest: Dark orchid

#B545DB is a violet with RGB values 181, 69, 219 and HSL 285°, 68%, 56%. It is a dark colour, so black text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Dark orchid.

Colour values

#B545DB#B545DB

HEX#B545DB

RGBrgb(181, 69, 219)

RGB (0–1)0.7098, 0.2706, 0.8588

RGB percentages71%, 27.1%, 85.9%

HSLhsl(284.8, 67.6%, 56.5%)

HSV / HSBhsv(284.8, 68.5%, 85.9%)

CMYK17.4%, 68.5%, 0%, 14.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,879,899

CSS custom property--colour: #B545DB;

Brightness & contrast

Relative luminance0.19194WCAG 2.x, 0 is black and 1 is white

Perceived brightness134.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.84:1

Contrast with white4.34:1WCAG normal text: Fail

Contrast with black4.84:1WCAG normal text: AA

Greyscale equivalent#686868

Inverted#4ABA24

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0073DFno red cones; affects about 1% of men; ΔE 52.3 from the original

Deuteranopia#457CD8no green cones; the most common form, about 1% of men; ΔE 54.8 from the original

Tritanopia#B3638Bno blue cones; rare, and affects men and women equally; ΔE 56.6 from the original

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

Contrast with white, large text4.34:1WCAG large text: AA

Contrast with black, large text4.84:1WCAG large text: AAA

Named colours

Dark orchid · ΔE 8.5 Medium orchid · ΔE 11.9 Dark violet · ΔE 20.6 Blue violet · ΔE 20.7 Dark magenta · ΔE 25.7 Medium slateblue · ΔE 26.9

Nearest named CSS colourDark orchid (#9932CC)ΔE 8.51, clearly different but related

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#6BDB45

Analogous#6A45DB, #DB45B6

Triadic#DBB545, #45DBB5

Split complementary#B6DB45, #45DB6A

Tetradic#DB6A45, #6BDB45, #45B6DB

Tints, shades & saturation

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

Lighter +40%#F9F0FC

Lighter +30%#E8C5F4

Lighter +20%#D79AEC

Lighter +10%#C670E3

Darker −10%#9E26C7

Darker −20%#7C1E9C

Darker −30%#5A1671

Darker −40%#380E46

More saturated +25%#C329F7

Less saturated −25%#A761BF

Channel breakdown

R181

G69

B219

Red181 (71%)

Green69 (27.1%)

Blue219 (85.9%)

Hue284.8°

Saturation (HSL)67.57%

Lightness56.47%

Dominant channelBlue

Hex per channelR B5 · G 45 · B DB

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Harmonies

Lighter and darker

Similar named colours

Also reads as

B545Db (chemical formula)

Formula
6,159.45 g/mol
546 atoms

B545Db has a molar mass of 6,159.45 g/mol, made up of 546 atoms across 2 elements: 545 × B, 1 × Db.

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Molar mass

Molar mass6,159.45 g/mol

Total atoms per molecule546

Distinct elements2

Mass of one molecule1.0228007 × 10^-20 g

Molecules per gram9.7770755 × 10^19

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

B95.6%

Db4.4%

Boron (B × 545)5,891.45 g/mol, 95.649%

Dubnium (Db)268 g/mol, 4.351%

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Elements in this formula

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