Recognised as Colour

#F71054

#F71054
Red
Dark
Nearest: Crimson

#F71054 is a red with RGB values 247, 16, 84 and HSL 342°, 94%, 52%. It is a dark colour, so black text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#F71054#F71054

HEX#F71054

RGBrgb(247, 16, 84)

RGB (0–1)0.9686, 0.0627, 0.3294

RGB percentages96.9%, 6.3%, 32.9%

HSLhsl(342.3, 93.5%, 51.6%)

HSV / HSBhsv(342.3, 93.5%, 96.9%)

CMYK0%, 93.5%, 66%, 3.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,191,572

CSS custom property--colour: #F71054;

Brightness & contrast

Relative luminance0.20785WCAG 2.x, 0 is black and 1 is white

Perceived brightness138.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.16:1

Contrast with white4.07:1WCAG normal text: Fail

Contrast with black5.16:1WCAG normal text: AA

Greyscale equivalent#464646

Inverted#08EFAB

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#656154no red cones; affects about 1% of men; ΔE 83 from the original

Deuteranopia#9B8D4Dno green cones; the most common form, about 1% of men; ΔE 83.3 from the original

Tritanopia#FF0034no blue cones; rare, and affects men and women equally; ΔE 20 from the original

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

Contrast with white, large text4.07:1WCAG large text: AA

Contrast with black, large text5.16:1WCAG large text: AAA

Named colours

Crimson · ΔE 11.6 Firebrick · ΔE 28.6 Tomato · ΔE 29.9 Brown · ΔE 33.1 Deep pink · ΔE 33.7 Indian red · ΔE 34.5

Nearest named CSS colourCrimson (#DC143C)ΔE 11.63, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#10F7B3

Analogous#F710C8, #F73F10

Triadic#54F710, #1054F7

Split complementary#10F73F, #10C8F7

Tetradic#C8F710, #10F7B3, #3F10F7

Tints, shades & saturation

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

Lighter +40%#FED5E1

Lighter +30%#FCA4BE

Lighter +20%#FA739B

Lighter +10%#F94177

Darker −10%#CD0741

Darker −20%#9C0532

Darker −30%#6A0422

Darker −40%#390212

More saturated +25%#FF0851

Less saturated −25%#D82F61

Channel breakdown

R247

G16

B84

Red247 (96.9%)

Green16 (6.3%)

Blue84 (32.9%)

Hue342.34°

Saturation (HSL)93.52%

Lightness51.57%

Dominant channelRed

Hex per channelR F7 · G 10 · B 54

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F71054 (chemical formula)

Formula
1,349,883.892 g/mol
71054 atoms

F71054 has a molar mass of 1,349,883.892 g/mol, made up of 71054 atoms across 1 element: 71054 × F.

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Molar mass

Molar mass1,349,883.892 g/mol

Total atoms per molecule71054

Distinct elements1

Mass of one molecule2.2415349 × 10^-18 g

Molecules per gram4.4612287 × 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

F100%

Fluorine (F × 71054)1,349,883.892 g/mol, 100%

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Elements in this formula

Fluorine

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