Recognised as Colour

#F13654

#F13654
Red
Dark
Nearest: Crimson

#F13654 is a red with RGB values 241, 54, 84 and HSL 350°, 87%, 58%. It is a dark colour, so black text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#F13654#F13654

HEX#F13654

RGBrgb(241, 54, 84)

RGB (0–1)0.9451, 0.2118, 0.3294

RGB percentages94.5%, 21.2%, 32.9%

HSLhsl(350.4, 87%, 57.8%)

HSV / HSBhsv(350.4, 77.6%, 94.5%)

CMYK0%, 77.6%, 65.1%, 5.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,808,084

CSS custom property--colour: #F13654;

Brightness & contrast

Relative luminance0.21979WCAG 2.x, 0 is black and 1 is white

Perceived brightness141 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.4:1

Contrast with white3.89:1WCAG normal text: Fail

Contrast with black5.4:1WCAG normal text: AA

Greyscale equivalent#606060

Inverted#0EC9AB

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6E6854no red cones; affects about 1% of men; ΔE 74.2 from the original

Deuteranopia#9C8F4Eno green cones; the most common form, about 1% of men; ΔE 75.2 from the original

Tritanopia#FF0043no blue cones; rare, and affects men and women equally; ΔE 14.9 from the original

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

Contrast with white, large text3.89:1WCAG large text: AA

Contrast with black, large text5.4:1WCAG large text: AAA

Named colours

Crimson · ΔE 8.5 Firebrick · ΔE 22.6 Tomato · ΔE 23.1 Indian red · ΔE 26.4 Brown · ΔE 26.5 Salmon · ΔE 28.5

Nearest named CSS colourCrimson (#DC143C)ΔE 8.48, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#36F1D3

Analogous#F136B1, #F17636

Triadic#54F136, #3654F1

Split complementary#36F175, #36B2F1

Tetradic#B2F136, #36F1D3, #7636F1

Tints, shades & saturation

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

Lighter +40%#FEF5F6

Lighter +30%#FBC5CE

Lighter +20%#F895A5

Lighter +10%#F4667D

Darker −10%#E41032

Darker −20%#B40D27

Darker −30%#85091D

Darker −40%#550613

More saturated +25%#FF284A

Less saturated −25%#D65166

Channel breakdown

R241

G54

B84

Red241 (94.5%)

Green54 (21.2%)

Blue84 (32.9%)

Hue350.37°

Saturation (HSL)86.98%

Lightness57.84%

Dominant channelRed

Hex per channelR F1 · G 36 · B 54

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F13654 (chemical formula)

Formula
259,398.692 g/mol
13654 atoms

F13654 has a molar mass of 259,398.692 g/mol, made up of 13654 atoms across 1 element: 13654 × F.

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Molar mass

Molar mass259,398.692 g/mol

Total atoms per molecule13654

Distinct elements1

Mass of one molecule4.3074166 × 10^-19 g

Molecules per gram2.3215771 × 10^18

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 × 13654)259,398.692 g/mol, 100%

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Elements in this formula

Fluorine

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