Recognised as Colour

#FF3240

#FF3240
Red
Dark
Nearest: Crimson

#FF3240 is a red with RGB values 255, 50, 64 and HSL 356°, 100%, 60%. It is a dark colour, so black text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#FF3240#FF3240

HEX#FF3240

RGBrgb(255, 50, 64)

RGB (0–1)1, 0.1961, 0.251

RGB percentages100%, 19.6%, 25.1%

HSLhsl(355.9, 100%, 59.8%)

HSV / HSBhsv(355.9, 80.4%, 100%)

CMYK0%, 80.4%, 74.9%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,724,544

CSS custom property--colour: #FF3240;

Brightness & contrast

Relative luminance0.23911WCAG 2.x, 0 is black and 1 is white

Perceived brightness146.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.78:1

Contrast with white3.63:1WCAG normal text: Fail

Contrast with black5.78:1WCAG normal text: AA

Greyscale equivalent#5F5F5F

Inverted#00CDBF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#746A3Eno red cones; affects about 1% of men; ΔE 79.9 from the original

Deuteranopia#A69638no green cones; the most common form, about 1% of men; ΔE 80.3 from the original

Tritanopia#FF003Ano blue cones; rare, and affects men and women equally; ΔE 7.1 from the original

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

Contrast with white, large text3.63:1WCAG large text: AA

Contrast with black, large text5.78:1WCAG large text: AAA

Named colours

Crimson · ΔE 13.7 Tomato · ΔE 17.9 Red · ΔE 24.7 Firebrick · ΔE 25.7 Orange red · ΔE 26.5 Coral · ΔE 31.4

Nearest named CSS colourCrimson (#DC143C)ΔE 13.68, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#32FFF1

Analogous#FF32A7, #FF8A32

Triadic#40FF32, #3240FF

Split complementary#32FF8A, #32A7FF

Tetradic#A7FF32, #32FFF1, #8B32FF

Tints, shades & saturation

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

Lighter +40%#FFFEFE

Lighter +30%#FFCBCF

Lighter +20%#FF989F

Lighter +10%#FF6570

Darker −10%#FE0011

Darker −20%#CB000E

Darker −30%#98000A

Darker −40%#650007

More saturated +25%#FF3240

Less saturated −25%#E54C56

Channel breakdown

R255

G50

B64

Red255 (100%)

Green50 (19.6%)

Blue64 (25.1%)

Hue355.9°

Saturation (HSL)100%

Lightness59.8%

Dominant channelRed

Hex per channelR FF · G 32 · B 40

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FF3240 (chemical formula)

Formula
61,572.518 g/mol
3241 atoms

FF3240 has a molar mass of 61,572.518 g/mol, made up of 3241 atoms across 1 element: 3241 × F.

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Molar mass

Molar mass61,572.518 g/mol

Total atoms per molecule3241

Distinct elements1

Mass of one molecule1.0224357 × 10^-19 g

Molecules per gram9.780566 × 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 × 3241)61,572.518 g/mol, 100%

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Elements in this formula

Fluorine

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