Recognised as Colour

#FC4B81

#FC4B81
Red
Dark
Nearest: Deep pink

#FC4B81 is a red with RGB values 252, 75, 129 and HSL 342°, 97%, 64%. It is a dark colour, so black text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Deep pink.

Colour values

#FC4B81#FC4B81

HEX#FC4B81

RGBrgb(252, 75, 129)

RGB (0–1)0.9882, 0.2941, 0.5059

RGB percentages98.8%, 29.4%, 50.6%

HSLhsl(341.7, 96.7%, 64.1%)

HSV / HSBhsv(341.7, 70.2%, 98.8%)

CMYK0%, 70.2%, 48.8%, 1.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,534,401

CSS custom property--colour: #FC4B81;

Brightness & contrast

Relative luminance0.27313WCAG 2.x, 0 is black and 1 is white

Perceived brightness155.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.46:1

Contrast with white3.25:1WCAG normal text: Fail

Contrast with black6.46:1WCAG normal text: AA

Greyscale equivalent#757575

Inverted#03B47E

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#757882no red cones; affects about 1% of men; ΔE 71.2 from the original

Deuteranopia#A39C7Dno green cones; the most common form, about 1% of men; ΔE 73.1 from the original

Tritanopia#FF2861no blue cones; rare, and affects men and women equally; ΔE 16.7 from the original

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

Contrast with white, large text3.25:1WCAG large text: AA

Contrast with black, large text6.46:1WCAG large text: AAA

Named colours

Deep pink · ΔE 21.5 Hot pink · ΔE 22 Pale violetred · ΔE 26.1 Crimson · ΔE 26.9 Indian red · ΔE 28.6 Medium violet red · ΔE 28.8

Nearest named CSS colourDeep pink (#FF1493)ΔE 21.47, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#4BFCC6

Analogous#FC4BDA, #FC6E4B

Triadic#81FC4B, #4B81FC

Split complementary#4BFC6E, #4BDAFC

Tetradic#DAFC4B, #4BFCC6, #6D4BFC

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFE1EA

Lighter +20%#FEAFC7

Lighter +10%#FD7DA4

Darker −10%#FB195E

Darker −20%#DD0446

Darker −30%#AB0336

Darker −40%#790226

More saturated +25%#FF4880

Less saturated −25%#E5628A

Channel breakdown

R252

G75

B129

Red252 (98.8%)

Green75 (29.4%)

Blue129 (50.6%)

Hue341.69°

Saturation (HSL)96.72%

Lightness64.12%

Dominant channelRed

Hex per channelR FC · G 4B · B 81

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FC4B81 (chemical formula)

Formula
942.652 g/mol
86 atoms

FC4B81 has a molar mass of 942.652 g/mol, made up of 86 atoms across 3 elements: 1 × F, 4 × C, 81 × B.

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Molar mass

Molar mass942.652 g/mol

Total atoms per molecule86

Distinct elements3

Mass of one molecule1.5653105 × 10^-21 g

Molecules per gram6.388509 × 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

F2%

C5.1%

B92.9%

Fluorine (F)18.998 g/mol, 2.015%

Carbon (C × 4)48.044 g/mol, 5.097%

Boron (B × 81)875.61 g/mol, 92.888%

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