Recognised as Colour

#F71B73

#F71B73
Red
Dark
Nearest: Deep pink

#F71B73 is a red with RGB values 247, 27, 115 and HSL 336°, 93%, 54%. It is a dark colour, so black text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Deep pink.

Colour values

#F71B73#F71B73

HEX#F71B73

RGBrgb(247, 27, 115)

RGB (0–1)0.9686, 0.1059, 0.451

RGB percentages96.9%, 10.6%, 45.1%

HSLhsl(336, 93.2%, 53.7%)

HSV / HSBhsv(336, 89.1%, 96.9%)

CMYK0%, 89.1%, 53.4%, 3.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,194,419

CSS custom property--colour: #F71B73;

Brightness & contrast

Relative luminance0.21796WCAG 2.x, 0 is black and 1 is white

Perceived brightness142 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.36:1

Contrast with white3.92:1WCAG normal text: Fail

Contrast with black5.36:1WCAG normal text: AA

Greyscale equivalent#505050

Inverted#08E48C

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#606674no red cones; affects about 1% of men; ΔE 81.5 from the original

Deuteranopia#988F6Eno green cones; the most common form, about 1% of men; ΔE 82.2 from the original

Tritanopia#FF0048no blue cones; rare, and affects men and women equally; ΔE 26.1 from the original

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

Contrast with white, large text3.92:1WCAG large text: AA

Contrast with black, large text5.36:1WCAG large text: AAA

Named colours

Deep pink · ΔE 16.8 Crimson · ΔE 25.8 Medium violet red · ΔE 28.2 Hot pink · ΔE 28.3 Pale violetred · ΔE 35.9 Indian red · ΔE 36.6

Nearest named CSS colourDeep pink (#FF1493)ΔE 16.79, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1BF79F

Analogous#F71BE1, #F7311B

Triadic#73F71B, #1B73F7

Split complementary#1BF731, #1BE1F7

Tetradic#E1F71B, #1BF79F, #311BF7

Tints, shades & saturation

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

Lighter +40%#FEE0EC

Lighter +30%#FCAFCE

Lighter +20%#FA7EB0

Lighter +10%#F94C91

Darker −10%#D7085B

Darker −20%#A60646

Darker −30%#750431

Darker −40%#44021C

More saturated +25%#FF1371

Less saturated −25%#D93979

Channel breakdown

R247

G27

B115

Red247 (96.9%)

Green27 (10.6%)

Blue115 (45.1%)

Hue336°

Saturation (HSL)93.22%

Lightness53.73%

Dominant channelRed

Hex per channelR F7 · G 1B · B 73

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F71B73 (chemical formula)

Formula
2,137.988 g/mol
144 atoms

F71B73 has a molar mass of 2,137.988 g/mol, made up of 144 atoms across 2 elements: 71 × F, 73 × B.

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Molar mass

Molar mass2,137.988 g/mol

Total atoms per molecule144

Distinct elements2

Mass of one molecule3.5502126 × 10^-21 g

Molecules per gram2.8167327 × 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

F63.1%

B36.9%

Fluorine (F × 71)1,348.858 g/mol, 63.09%

Boron (B × 73)789.13 g/mol, 36.91%

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