Recognised as Colour

#C157DB

#C157DB
Violet
Dark
Nearest: Medium orchid

#C157DB is a violet with RGB values 193, 87, 219 and HSL 288°, 65%, 60%. It is a dark colour, so black text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Medium orchid.

Colour values

#C157DB#C157DB

HEX#C157DB

RGBrgb(193, 87, 219)

RGB (0–1)0.7569, 0.3412, 0.8588

RGB percentages75.7%, 34.1%, 85.9%

HSLhsl(288.2, 64.7%, 60%)

HSV / HSBhsv(288.2, 60.3%, 85.9%)

CMYK11.9%, 60.3%, 0%, 14.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,670,939

CSS custom property--colour: #C157DB;

Brightness & contrast

Relative luminance0.23268WCAG 2.x, 0 is black and 1 is white

Perceived brightness145.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.65:1

Contrast with white3.71:1WCAG normal text: Fail

Contrast with black5.65:1WCAG normal text: AA

Greyscale equivalent#777777

Inverted#3EA824

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#367DDFno red cones; affects about 1% of men; ΔE 50.3 from the original

Deuteranopia#6088D8no green cones; the most common form, about 1% of men; ΔE 52.1 from the original

Tritanopia#C16D91no blue cones; rare, and affects men and women equally; ΔE 50.1 from the original

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

Contrast with white, large text3.71:1WCAG large text: AA

Contrast with black, large text5.65:1WCAG large text: AAA

Named colours

Medium orchid · ΔE 3.4 Dark orchid · ΔE 16.6 Orchid · ΔE 17.6 Violet · ΔE 19.6 Medium purple · ΔE 24.6 Dark magenta · ΔE 25.1

Nearest named CSS colourMedium orchid (#BA55D3)ΔE 3.39, a close match

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#71DB57

Analogous#7F57DB, #DB57B3

Triadic#DBC157, #57DBC1

Split complementary#B3DB57, #57DB7F

Tetradic#DB7F57, #71DB57, #57B3DB

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#F0D5F6

Lighter +20%#E0ABED

Lighter +10%#D181E4

Darker −10%#B22DD2

Darker −20%#8E24A8

Darker −30%#6B1B7E

Darker −40%#471254

More saturated +25%#D03DF4

Less saturated −25%#B271C2

Channel breakdown

R193

G87

B219

Red193 (75.7%)

Green87 (34.1%)

Blue219 (85.9%)

Hue288.18°

Saturation (HSL)64.71%

Lightness60%

Dominant channelBlue

Hex per channelR C1 · G 57 · B DB

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Harmonies

Lighter and darker

Similar named colours

Also reads as

C157Db (chemical formula)

Formula
2,153.727 g/mol
158 atoms

C157Db has a molar mass of 2,153.727 g/mol, made up of 158 atoms across 2 elements: 157 × C, 1 × Db.

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Molar mass

Molar mass2,153.727 g/mol

Total atoms per molecule158

Distinct elements2

Mass of one molecule3.5763478 × 10^-21 g

Molecules per gram2.7961486 × 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

C87.6%

Db12.4%

Carbon (C × 157)1,885.727 g/mol, 87.556%

Dubnium (Db)268 g/mol, 12.444%

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