Recognised as Colour

#F44220

#F44220
Red
Dark
Nearest: Orange red

#F44220 is a red with RGB values 244, 66, 32 and HSL 10°, 91%, 54%. It is a dark colour, so black text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#F44220#F44220

HEX#F44220

RGBrgb(244, 66, 32)

RGB (0–1)0.9569, 0.2588, 0.1255

RGB percentages95.7%, 25.9%, 12.5%

HSLhsl(9.6, 90.6%, 54.1%)

HSV / HSBhsv(9.6, 86.9%, 95.7%)

CMYK0%, 73%, 86.9%, 4.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,007,712

CSS custom property--colour: #F44220;

Brightness & contrast

Relative luminance0.23234WCAG 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 5.65:1

Contrast with white3.72:1WCAG normal text: Fail

Contrast with black5.65:1WCAG normal text: AA

Greyscale equivalent#656565

Inverted#0BBDDF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#796B18no red cones; affects about 1% of men; ΔE 71.6 from the original

Deuteranopia#A59311no green cones; the most common form, about 1% of men; ΔE 71.9 from the original

Tritanopia#FF003Dno blue cones; rare, and affects men and women equally; ΔE 21.8 from the original

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

Contrast with white, large text3.72:1WCAG large text: AA

Contrast with black, large text5.65:1WCAG large text: AAA

Named colours

Orange red · ΔE 11.6 Tomato · ΔE 15.5 Red · ΔE 17.3 Coral · ΔE 25.8 Crimson · ΔE 26.1 Firebrick · ΔE 27.7

Nearest named CSS colourOrange red (#FF4500)ΔE 11.59, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#20D2F4

Analogous#F42068, #F4AC20

Triadic#20F442, #4220F4

Split complementary#20F4AC, #2068F4

Tetradic#68F420, #20D2F4, #AC20F4

Tints, shades & saturation

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

Lighter +40%#FEE7E2

Lighter +30%#FBBEB2

Lighter +20%#F99481

Lighter +10%#F66B51

Darker −10%#D62B0B

Darker −20%#A62108

Darker −30%#751806

Darker −40%#450E03

More saturated +25%#FF3B15

Less saturated −25%#D7563D

Channel breakdown

R244

G66

B32

Red244 (95.7%)

Green66 (25.9%)

Blue32 (12.5%)

Hue9.62°

Saturation (HSL)90.6%

Lightness54.12%

Dominant channelRed

Hex per channelR F4 · G 42 · B 20

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F44220 (chemical formula)

Formula
840,091.56 g/mol
44220 atoms

F44220 has a molar mass of 840,091.56 g/mol, made up of 44220 atoms across 1 element: 44220 × F.

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Molar mass

Molar mass840,091.56 g/mol

Total atoms per molecule44220

Distinct elements1

Mass of one molecule1.3950049 × 10^-18 g

Molecules per gram7.1684338 × 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 × 44220)840,091.56 g/mol, 100%

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Elements in this formula

Fluorine

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