Recognised as Colour

#FC3579

#FC3579
Red
Dark
Nearest: Deep pink

#FC3579 is a red with RGB values 252, 53, 121 and HSL 339°, 97%, 60%. It is a dark colour, so black text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Deep pink.

Colour values

#FC3579#FC3579

HEX#FC3579

RGBrgb(252, 53, 121)

RGB (0–1)0.9882, 0.2078, 0.4745

RGB percentages98.8%, 20.8%, 47.5%

HSLhsl(339.5, 97.1%, 59.8%)

HSV / HSBhsv(339.5, 79%, 98.8%)

CMYK0%, 79%, 52%, 1.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,528,761

CSS custom property--colour: #FC3579;

Brightness & contrast

Relative luminance0.24622WCAG 2.x, 0 is black and 1 is white

Perceived brightness149.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.92:1

Contrast with white3.54:1WCAG normal text: Fail

Contrast with black5.92:1WCAG normal text: AA

Greyscale equivalent#646464

Inverted#03CA86

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6B6F7Ano red cones; affects about 1% of men; ΔE 77.7 from the original

Deuteranopia#9F9674no green cones; the most common form, about 1% of men; ΔE 78.8 from the original

Tritanopia#FF0053no blue cones; rare, and affects men and women equally; ΔE 20.2 from the original

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

Contrast with white, large text3.54:1WCAG large text: AA

Contrast with black, large text5.92:1WCAG large text: AAA

Named colours

Deep pink · ΔE 18.6 Crimson · ΔE 25.3 Hot pink · ΔE 25.9 Medium violet red · ΔE 29 Pale violetred · ΔE 32.4 Indian red · ΔE 33.3

Nearest named CSS colourDeep pink (#FF1493)ΔE 18.61, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#35FCB8

Analogous#FC35DC, #FC5535

Triadic#79FC35, #3579FC

Split complementary#35FC55, #35DCFC

Tetradic#DCFC35, #35FCB8, #5535FC

Tints, shades & saturation

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

Lighter +40%#FFFEFE

Lighter +30%#FECCDD

Lighter +20%#FD9ABC

Lighter +10%#FD679A

Darker −10%#FA0458

Darker −20%#C80346

Darker −30%#960235

Darker −40%#640123

More saturated +25%#FF3278

Less saturated −25%#E24F81

Channel breakdown

R252

G53

B121

Red252 (98.8%)

Green53 (20.8%)

Blue121 (47.5%)

Hue339.5°

Saturation (HSL)97.07%

Lightness59.8%

Dominant channelRed

Hex per channelR FC · G 35 · B 79

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FC3579 (chemical formula)

Formula
43,006.367 g/mol
3580 atoms

FC3579 has a molar mass of 43,006.367 g/mol, made up of 3580 atoms across 2 elements: 1 × F, 3579 × C.

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Molar mass

Molar mass43,006.367 g/mol

Total atoms per molecule3580

Distinct elements2

Mass of one molecule7.1413753 × 10^-20 g

Molecules per gram1.4002905 × 10^19

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

F0%

C100%

Fluorine (F)18.998 g/mol, 0.044%

Carbon (C × 3579)42,987.369 g/mol, 99.956%

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