Recognised as Colour

#F83443

#F83443
Red
Dark
Nearest: Crimson

#F83443 is a red with RGB values 248, 52, 67 and HSL 355°, 93%, 59%. It is a dark colour, so black text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#F83443#F83443

HEX#F83443

RGBrgb(248, 52, 67)

RGB (0–1)0.9725, 0.2039, 0.2627

RGB percentages97.3%, 20.4%, 26.3%

HSLhsl(355.4, 93.3%, 58.8%)

HSV / HSBhsv(355.4, 79%, 97.3%)

CMYK0%, 79%, 73%, 2.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,266,307

CSS custom property--colour: #F83443;

Brightness & contrast

Relative luminance0.22818WCAG 2.x, 0 is black and 1 is white

Perceived brightness143.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.56:1

Contrast with white3.77:1WCAG normal text: Fail

Contrast with black5.56:1WCAG normal text: AA

Greyscale equivalent#5F5F5F

Inverted#07CBBC

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#726942no red cones; affects about 1% of men; ΔE 77.3 from the original

Deuteranopia#A2923Cno green cones; the most common form, about 1% of men; ΔE 77.3 from the original

Tritanopia#FF003Cno blue cones; rare, and affects men and women equally; ΔE 9.5 from the original

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

Contrast with white, large text3.77:1WCAG large text: AA

Contrast with black, large text5.56:1WCAG large text: AAA

Named colours

Crimson · ΔE 10.2 Tomato · ΔE 17.2 Firebrick · ΔE 22.7 Red · ΔE 28.4 Orange red · ΔE 29.4 Brown · ΔE 29.9

Nearest named CSS colourCrimson (#DC143C)ΔE 10.22, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#34F8E9

Analogous#F834A5, #F88734

Triadic#43F834, #3443F8

Split complementary#34F887, #34A5F8

Tetradic#A5F834, #34F8E9, #8734F8

Tints, shades & saturation

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

Lighter +40%#FFF9FA

Lighter +30%#FDC8CC

Lighter +20%#FB979E

Lighter +10%#FA6571

Darker −10%#F1081A

Darker −20%#BF0715

Darker −30%#8E050F

Darker −40%#5D030A

More saturated +25%#FF2D3D

Less saturated −25%#DE4E59

Channel breakdown

R248

G52

B67

Red248 (97.3%)

Green52 (20.4%)

Blue67 (26.3%)

Hue355.41°

Saturation (HSL)93.33%

Lightness58.82%

Dominant channelRed

Hex per channelR F8 · G 34 · B 43

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F83443 (chemical formula)

Formula
1,585,250.114 g/mol
83443 atoms

F83443 has a molar mass of 1,585,250.114 g/mol, made up of 83443 atoms across 1 element: 83443 × F.

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Molar mass

Molar mass1,585,250.114 g/mol

Total atoms per molecule83443

Distinct elements1

Mass of one molecule2.6323697 × 10^-18 g

Molecules per gram3.7988584 × 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 × 83443)1,585,250.114 g/mol, 100%

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Elements in this formula

Fluorine

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