Recognised as Colour

#B40F56

#B40F56
Red
Dark
Nearest: Medium violet red

#B40F56 is a red with RGB values 180, 15, 86 and HSL 334°, 85%, 38%. It is a dark colour, so white text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Medium violet red.

Colour values

#B40F56#B40F56

HEX#B40F56

RGBrgb(180, 15, 86)

RGB (0–1)0.7059, 0.0588, 0.3373

RGB percentages70.6%, 5.9%, 33.7%

HSLhsl(334.2, 84.6%, 38.2%)

HSV / HSBhsv(334.2, 91.7%, 70.6%)

CMYK0%, 91.7%, 52.2%, 29.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,800,406

CSS custom property--colour: #B40F56;

Brightness & contrast

Relative luminance0.10717WCAG 2.x, 0 is black and 1 is white

Perceived brightness103.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.68:1

Contrast with white6.68:1WCAG normal text: AA

Contrast with black3.14:1WCAG normal text: Fail

Greyscale equivalent#373737

Inverted#4BF0A9

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#434857no red cones; affects about 1% of men; ΔE 63.8 from the original

Deuteranopia#6C6752no green cones; the most common form, about 1% of men; ΔE 65.5 from the original

Tritanopia#C50034no blue cones; rare, and affects men and women equally; ΔE 25.6 from the original

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

Contrast with white, large text6.68:1WCAG large text: AAA

Contrast with black, large text3.14:1WCAG large text: AA

Named colours

Medium violet red · ΔE 22.7 Pale violetred · ΔE 28.2 Brown · ΔE 28.6 Indian red · ΔE 28.6 Deep pink · ΔE 29.4 Crimson · ΔE 30.3

Nearest named CSS colourMedium violet red (#C71585)ΔE 22.75, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0FB46D

Analogous#B40FA8, #B41B0F

Triadic#56B40F, #0F56B4

Split complementary#0FB41B, #0FA8B4

Tetradic#A9B40F, #0FB46D, #1B0FB4

Tints, shades & saturation

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

Lighter +40%#F699C1

Lighter +30%#F369A4

Lighter +20%#EF3A88

Lighter +10%#E3136C

Darker −10%#850B40

Darker −20%#560729

Darker −30%#270313

Darker −40%#000000

More saturated +25%#C30054

Less saturated −25%#9C2759

Channel breakdown

R180

G15

B86

Red180 (70.6%)

Green15 (5.9%)

Blue86 (33.7%)

Hue334.18°

Saturation (HSL)84.62%

Lightness38.24%

Dominant channelRed

Hex per channelR B4 · G 0F · B 56

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Harmonies

Lighter and darker

Similar named colours

Also reads as

B40F56 (chemical formula)

Formula
1,496.288 g/mol
96 atoms

B40F56 has a molar mass of 1,496.288 g/mol, made up of 96 atoms across 2 elements: 40 × B, 56 × F.

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Molar mass

Molar mass1,496.288 g/mol

Total atoms per molecule96

Distinct elements2

Mass of one molecule2.4846447 × 10^-21 g

Molecules per gram4.0247203 × 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

B28.9%

F71.1%

Boron (B × 40)432.4 g/mol, 28.898%

Fluorine (F × 56)1,063.888 g/mol, 71.102%

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