Recognised as Colour

#C51563

#C51563
Red
Dark
Nearest: Medium violet red

#C51563 is a red with RGB values 197, 21, 99 and HSL 333°, 81%, 43%. It is a dark colour, so white text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Medium violet red.

Colour values

#C51563#C51563

HEX#C51563

RGBrgb(197, 21, 99)

RGB (0–1)0.7725, 0.0824, 0.3882

RGB percentages77.3%, 8.2%, 38.8%

HSLhsl(333.4, 80.7%, 42.7%)

HSV / HSBhsv(333.4, 89.3%, 77.3%)

CMYK0%, 89.3%, 49.7%, 22.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,916,067

CSS custom property--colour: #C51563;

Brightness & contrast

Relative luminance0.13307WCAG 2.x, 0 is black and 1 is white

Perceived brightness113.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.74:1

Contrast with white5.74:1WCAG normal text: AA

Contrast with black3.66:1WCAG normal text: Fail

Greyscale equivalent#404040

Inverted#3AEA9C

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#495164no red cones; affects about 1% of men; ΔE 68.2 from the original

Deuteranopia#77725Fno green cones; the most common form, about 1% of men; ΔE 69.5 from the original

Tritanopia#D7003Cno blue cones; rare, and affects men and women equally; ΔE 28.2 from the original

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

Contrast with white, large text5.74:1WCAG large text: AAA

Contrast with black, large text3.66:1WCAG large text: AA

Named colours

Medium violet red · ΔE 19.1 Deep pink · ΔE 23.3 Hot pink · ΔE 26.6 Pale violetred · ΔE 28.1 Crimson · ΔE 30.5 Indian red · ΔE 30.9

Nearest named CSS colourMedium violet red (#C71585)ΔE 19.14, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#15C577

Analogous#C515BB, #C51F15

Triadic#63C515, #1563C5

Split complementary#15C51F, #15BBC5

Tetradic#BBC515, #15C577, #1F15C5

Tints, shades & saturation

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

Lighter +40%#F7AFCF

Lighter +30%#F281B3

Lighter +20%#ED5397

Lighter +10%#E8257B

Darker −10%#97104C

Darker −20%#690B35

Darker −30%#3B061E

Darker −40%#0D0106

More saturated +25%#DA0061

Less saturated −25%#AA3066

Channel breakdown

R197

G21

B99

Red197 (77.3%)

Green21 (8.2%)

Blue99 (38.8%)

Hue333.41°

Saturation (HSL)80.73%

Lightness42.75%

Dominant channelRed

Hex per channelR C5 · G 15 · B 63

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Harmonies

Lighter and darker

Similar named colours

Also reads as

C51563 (chemical formula)

Formula
619,323.193 g/mol
51563 atoms

C51563 has a molar mass of 619,323.193 g/mol, made up of 51563 atoms across 1 element: 51563 × C.

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Molar mass

Molar mass619,323.193 g/mol

Total atoms per molecule51563

Distinct elements1

Mass of one molecule1.0284104 × 10^-18 g

Molecules per gram9.7237449 × 10^17

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

C100%

Carbon (C × 51563)619,323.193 g/mol, 100%

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Elements in this formula

Carbon

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