Recognised as Colour

#B569DB

#B569DB
Violet
Dark
Nearest: Medium orchid

#B569DB is a violet with RGB values 181, 105, 219 and HSL 280°, 61%, 64%. It is a dark colour, so black text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Medium orchid.

Colour values

#B569DB#B569DB

HEX#B569DB

RGBrgb(181, 105, 219)

RGB (0–1)0.7098, 0.4118, 0.8588

RGB percentages71%, 41.2%, 85.9%

HSLhsl(280, 61.3%, 63.5%)

HSV / HSBhsv(280, 52.1%, 85.9%)

CMYK17.4%, 52.1%, 0%, 14.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,889,115

CSS custom property--colour: #B569DB;

Brightness & contrast

Relative luminance0.25041WCAG 2.x, 0 is black and 1 is white

Perceived brightness147.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.01:1

Contrast with white3.5:1WCAG normal text: Fail

Contrast with black6.01:1WCAG normal text: AA

Greyscale equivalent#818181

Inverted#4A9624

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4D85DFno red cones; affects about 1% of men; ΔE 39.9 from the original

Deuteranopia#658BD8no green cones; the most common form, about 1% of men; ΔE 40.9 from the original

Tritanopia#B27C98no blue cones; rare, and affects men and women equally; ΔE 46.7 from the original

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

Contrast with white, large text3.5:1WCAG large text: AA

Contrast with black, large text6.01:1WCAG large text: AAA

Named colours

Medium orchid · ΔE 10.2 Medium purple · ΔE 13.4 Orchid · ΔE 14.5 Violet · ΔE 17.2 Slate blue · ΔE 21.2 Medium slateblue · ΔE 21.3

Nearest named CSS colourMedium orchid (#BA55D3)ΔE 10.15, a distinctly different colour

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#8FDB69

Analogous#7C69DB, #DB69C8

Triadic#DBB569, #69DBB5

Split complementary#C8DB69, #69DB7C

Tetradic#DB7C69, #8FDB69, #69C8DB

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#F2E4F9

Lighter +20%#DEBBEF

Lighter +10%#C992E5

Darker −10%#A140D1

Darker −20%#862BB3

Darker −30%#67218A

Darker −40%#481761

More saturated +25%#BD52F2

Less saturated −25%#AD80C4

Channel breakdown

R181

G105

B219

Red181 (71%)

Green105 (41.2%)

Blue219 (85.9%)

Hue280°

Saturation (HSL)61.29%

Lightness63.53%

Dominant channelBlue

Hex per channelR B5 · G 69 · B DB

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Harmonies

Lighter and darker

Similar named colours

Also reads as

B569Db (chemical formula)

Formula
6,418.89 g/mol
570 atoms

B569Db has a molar mass of 6,418.89 g/mol, made up of 570 atoms across 2 elements: 569 × B, 1 × Db.

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Molar mass

Molar mass6,418.89 g/mol

Total atoms per molecule570

Distinct elements2

Mass of one molecule1.0658818 × 10^-20 g

Molecules per gram9.3819037 × 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

B95.8%

Db4.2%

Boron (B × 569)6,150.89 g/mol, 95.825%

Dubnium (Db)268 g/mol, 4.175%

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Elements in this formula

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