Recognised as Colour

#F63239

#F63239
Red
Dark
Nearest: Crimson

#F63239 is a red with RGB values 246, 50, 57 and HSL 358°, 92%, 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

#F63239#F63239

HEX#F63239

RGBrgb(246, 50, 57)

RGB (0–1)0.9647, 0.1961, 0.2235

RGB percentages96.5%, 19.6%, 22.4%

HSLhsl(357.9, 91.6%, 58%)

HSV / HSBhsv(357.9, 79.7%, 96.5%)

CMYK0%, 79.7%, 76.8%, 3.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,134,713

CSS custom property--colour: #F63239;

Brightness & contrast

Relative luminance0.22169WCAG 2.x, 0 is black and 1 is white

Perceived brightness141.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.43:1

Contrast with white3.86:1WCAG normal text: Fail

Contrast with black5.43:1WCAG normal text: AA

Greyscale equivalent#5C5C5C

Inverted#09CDC6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#716737no red cones; affects about 1% of men; ΔE 77.4 from the original

Deuteranopia#A19130no green cones; the most common form, about 1% of men; ΔE 77.6 from the original

Tritanopia#FF0037no blue cones; rare, and affects men and women equally; ΔE 9.3 from the original

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

Contrast with white, large text3.86:1WCAG large text: AA

Contrast with black, large text5.43:1WCAG large text: AAA

Named colours

Crimson · ΔE 13.3 Tomato · ΔE 16.1 Firebrick · ΔE 23 Red · ΔE 24 Orange red · ΔE 24.8 Coral · ΔE 29.6

Nearest named CSS colourCrimson (#DC143C)ΔE 13.27, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#32F6EF

Analogous#F6329B, #F68D32

Triadic#39F632, #3239F6

Split complementary#32F68D, #329BF6

Tetradic#9BF632, #32F6EF, #8D32F6

Tints, shades & saturation

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

Lighter +40%#FFF5F6

Lighter +30%#FCC5C7

Lighter +20%#FA9497

Lighter +10%#F86368

Darker −10%#EB0A12

Darker −20%#BA080F

Darker −30%#89060B

Darker −40%#580407

More saturated +25%#FF2931

Less saturated −25%#DB4D52

Channel breakdown

R246

G50

B57

Red246 (96.5%)

Green50 (19.6%)

Blue57 (22.4%)

Hue357.86°

Saturation (HSL)91.59%

Lightness58.04%

Dominant channelRed

Hex per channelR F6 · G 32 · B 39

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F63239 (chemical formula)

Formula
1,201,414.522 g/mol
63239 atoms

F63239 has a molar mass of 1,201,414.522 g/mol, made up of 63239 atoms across 1 element: 63239 × F.

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Molar mass

Molar mass1,201,414.522 g/mol

Total atoms per molecule63239

Distinct elements1

Mass of one molecule1.9949957 × 10^-18 g

Molecules per gram5.012542 × 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 × 63239)1,201,414.522 g/mol, 100%

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Elements in this formula

Fluorine

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