Recognised as Colour

#B51585

#B51585
Magenta
Dark
Nearest: Medium violet red

#B51585 is a magenta with RGB values 181, 21, 133 and HSL 318°, 79%, 40%. It is a dark colour, so white text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Medium violet red.

Colour values

#B51585#B51585

HEX#B51585

RGBrgb(181, 21, 133)

RGB (0–1)0.7098, 0.0824, 0.5216

RGB percentages71%, 8.2%, 52.2%

HSLhsl(318, 79.2%, 39.6%)

HSV / HSBhsv(318, 88.4%, 71%)

CMYK0%, 88.4%, 26.5%, 29%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,867,525

CSS custom property--colour: #B51585;

Brightness & contrast

Relative luminance0.12054WCAG 2.x, 0 is black and 1 is white

Perceived brightness109.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.16:1

Contrast with white6.16:1WCAG normal text: AA

Contrast with black3.41:1WCAG normal text: Fail

Greyscale equivalent#3F3F3F

Inverted#4AEA7A

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#315188no red cones; affects about 1% of men; ΔE 62.2 from the original

Deuteranopia#626B82no green cones; the most common form, about 1% of men; ΔE 65.5 from the original

Tritanopia#C2104Fno blue cones; rare, and affects men and women equally; ΔE 35 from the original

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

Contrast with white, large text6.16:1WCAG large text: AAA

Contrast with black, large text3.41:1WCAG large text: AA

Named colours

Medium violet red · ΔE 7.7 Dark magenta · ΔE 20.5 Purple · ΔE 21.1 Hot pink · ΔE 26.4 Deep pink · ΔE 27.3 Orchid · ΔE 28.1

Nearest named CSS colourMedium violet red (#C71585)ΔE 7.67, clearly different but related

Hue familymagenta

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#15B545

Analogous#9515B5, #B51535

Triadic#85B515, #1585B5

Split complementary#35B515, #15B595

Tetradic#B59515, #15B545, #1535B5

Tints, shades & saturation

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

Lighter +40%#F4A2DB

Lighter +30%#EF74CA

Lighter +20%#EA46B9

Lighter +10%#E31AA7

Darker −10%#871063

Darker −20%#5A0A42

Darker −30%#2C0520

Darker −40%#000000

More saturated +25%#CA008D

Less saturated −25%#9C2E7B

Channel breakdown

R181

G21

B133

Red181 (71%)

Green21 (8.2%)

Blue133 (52.2%)

Hue318°

Saturation (HSL)79.21%

Lightness39.61%

Dominant channelRed

Hex per channelR B5 · G 15 · B 85

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Harmonies

Lighter and darker

Similar named colours

Also reads as

B51585 (chemical formula)

Formula
557,633.85 g/mol
51585 atoms

B51585 has a molar mass of 557,633.85 g/mol, made up of 51585 atoms across 1 element: 51585 × B.

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Molar mass

Molar mass557,633.85 g/mol

Total atoms per molecule51585

Distinct elements1

Mass of one molecule9.2597279 × 10^-19 g

Molecules per gram1.0799453 × 10^18

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

B100%

Boron (B × 51585)557,633.85 g/mol, 100%

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Elements in this formula

Boron

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