Recognised as Colour

#F65666

#F65666
Red
Dark
Nearest: Crimson

#F65666 is a red with RGB values 246, 86, 102 and HSL 354°, 90%, 65%. It is a dark colour, so black text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#F65666#F65666

HEX#F65666

RGBrgb(246, 86, 102)

RGB (0–1)0.9647, 0.3373, 0.4

RGB percentages96.5%, 33.7%, 40%

HSLhsl(354, 89.9%, 65.1%)

HSV / HSBhsv(354, 65%, 96.5%)

CMYK0%, 65%, 58.5%, 3.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,143,974

CSS custom property--colour: #F65666;

Brightness & contrast

Relative luminance0.27208WCAG 2.x, 0 is black and 1 is white

Perceived brightness153.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.44:1

Contrast with white3.26:1WCAG normal text: Fail

Contrast with black6.44:1WCAG normal text: AA

Greyscale equivalent#797979

Inverted#09A999

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#7F7966no red cones; affects about 1% of men; ΔE 65.2 from the original

Deuteranopia#A79B62no green cones; the most common form, about 1% of men; ΔE 66.5 from the original

Tritanopia#FF345Dno blue cones; rare, and affects men and women equally; ΔE 13.6 from the original

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

Contrast with white, large text3.26:1WCAG large text: AA

Contrast with black, large text6.44:1WCAG large text: AAA

Named colours

Crimson · ΔE 17.3 Indian red · ΔE 18.4 Salmon · ΔE 19 Light coral · ΔE 21.2 Tomato · ΔE 21.9 Firebrick · ΔE 24.4

Nearest named CSS colourCrimson (#DC143C)ΔE 17.28, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#56F6E6

Analogous#F656B6, #F69656

Triadic#66F656, #5666F6

Split complementary#56F696, #56B6F6

Tetradic#B6F656, #56F6E6, #9656F6

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FEE7EA

Lighter +20%#FBB7BE

Lighter +10%#F98692

Darker −10%#F3263A

Darker −20%#DA0C20

Darker −30%#AA0919

Darker −40%#7A0612

More saturated +25%#FF4D5F

Less saturated −25%#E06C78

Channel breakdown

R246

G86

B102

Red246 (96.5%)

Green86 (33.7%)

Blue102 (40%)

Hue354°

Saturation (HSL)89.89%

Lightness65.1%

Dominant channelRed

Hex per channelR F6 · G 56 · B 66

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F65666 (chemical formula)

Formula
1,247,522.668 g/mol
65666 atoms

F65666 has a molar mass of 1,247,522.668 g/mol, made up of 65666 atoms across 1 element: 65666 × F.

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Molar mass

Molar mass1,247,522.668 g/mol

Total atoms per molecule65666

Distinct elements1

Mass of one molecule2.0715601 × 10^-18 g

Molecules per gram4.8272796 × 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 × 65666)1,247,522.668 g/mol, 100%

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Elements in this formula

Fluorine

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