Recognised as Colour

#AC9DB8

#AC9DB8
Violet
Dark
Nearest: Thistle

#AC9DB8 is a violet with RGB values 172, 157, 184 and HSL 273°, 16%, 67%. It is a dark colour, so black text on it reaches 8.3:1 contrast (AAA for normal text). The nearest named colour is Thistle.

Colour values

#AC9DB8#AC9DB8

HEX#AC9DB8

RGBrgb(172, 157, 184)

RGB (0–1)0.6745, 0.6157, 0.7216

RGB percentages67.5%, 61.6%, 72.2%

HSLhsl(273.3, 16%, 66.9%)

HSV / HSBhsv(273.3, 14.7%, 72.2%)

CMYK6.5%, 14.7%, 0%, 27.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,312,568

CSS custom property--colour: #AC9DB8;

Brightness & contrast

Relative luminance0.36345WCAG 2.x, 0 is black and 1 is white

Perceived brightness164.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 8.27:1

Contrast with white2.54:1WCAG normal text: Fail

Contrast with black8.27:1WCAG normal text: AAA

Greyscale equivalent#A2A2A2

Inverted#536247

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#99A2B9no red cones; affects about 1% of men; ΔE 9 from the original

Deuteranopia#9CA3B7no green cones; the most common form, about 1% of men; ΔE 9 from the original

Tritanopia#ABA0A6no blue cones; rare, and affects men and women equally; ΔE 11.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text2.54:1WCAG large text: Fail

Contrast with black, large text8.27:1WCAG large text: AAA

Named colours

Thistle · ΔE 13.8 Dark grey · ΔE 16.2 Light slate grey · ΔE 16.9 Light steelblue · ΔE 17 Slate grey · ΔE 19 Silver · ΔE 19.4

Nearest named CSS colourThistle (#D8BFD8)ΔE 13.82, a distinctly different colour

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#A9B89D

Analogous#9F9DB8, #B89DB7

Triadic#B8AC9D, #9DB8AC

Split complementary#B7B89D, #9DB89F

Tetradic#B89F9D, #A9B89D, #9DB7B8

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#F7F6F8

Lighter +20%#DED8E3

Lighter +10%#C5BBCD

Darker −10%#937FA3

Darker −20%#7A648B

Darker −30%#604F6D

Darker −40%#463A4F

More saturated +25%#AE88CD

Less saturated −25%#ABABAB

Channel breakdown

R172

G157

B184

Red172 (67.5%)

Green157 (61.6%)

Blue184 (72.2%)

Hue273.33°

Saturation (HSL)15.98%

Lightness66.86%

Dominant channelBlue

Hex per channelR AC · G 9D · B B8

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Ac9Db8 (chemical formula)

Formula
4,187 g/mol
17 atoms

Ac9Db8 has a molar mass of 4,187 g/mol, made up of 17 atoms across 2 elements: 9 × Ac, 8 × Db.

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Molar mass

Molar mass4,187 g/mol

Total atoms per molecule17

Distinct elements2

Mass of one molecule6.9526771 × 10^-21 g

Molecules per gram1.4382949 × 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

Ac48.8%

Db51.2%

Actinium (Ac × 9)2,043 g/mol, 48.794%

Dubnium (Db × 8)2,144 g/mol, 51.206%

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