Recognised as Colour

#F91620

#F91620
Red
Dark
Nearest: Red

#F91620 is a red with RGB values 249, 22, 32 and HSL 357°, 95%, 53%. It is a dark colour, so black text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#F91620#F91620

HEX#F91620

RGBrgb(249, 22, 32)

RGB (0–1)0.9765, 0.0863, 0.1255

RGB percentages97.6%, 8.6%, 12.5%

HSLhsl(357.4, 95%, 53.1%)

HSV / HSBhsv(357.4, 91.2%, 97.6%)

CMYK0%, 91.2%, 87.1%, 2.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,324,128

CSS custom property--colour: #F91620;

Brightness & contrast

Relative luminance0.20818WCAG 2.x, 0 is black and 1 is white

Perceived brightness137.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.16:1

Contrast with white4.07:1WCAG normal text: Fail

Contrast with black5.16:1WCAG normal text: AA

Greyscale equivalent#474747

Inverted#06E9DF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6C601Bno red cones; affects about 1% of men; ΔE 83.5 from the original

Deuteranopia#A08E0Ano green cones; the most common form, about 1% of men; ΔE 83 from the original

Tritanopia#FF0020no blue cones; rare, and affects men and women equally; ΔE 3.5 from the original

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

Contrast with white, large text4.07:1WCAG large text: AA

Contrast with black, large text5.16:1WCAG large text: AAA

Named colours

Red · ΔE 11.4 Orange red · ΔE 16.5 Tomato · ΔE 23.6 Crimson · ΔE 24.1 Firebrick · ΔE 31.3 Coral · ΔE 36

Nearest named CSS colourRed (#FF0000)ΔE 11.41, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#16F9EF

Analogous#F91692, #F97E16

Triadic#20F916, #1620F9

Split complementary#16F97E, #1692F9

Tetradic#92F916, #16F9EF, #7E16F9

Tints, shades & saturation

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

Lighter +40%#FEDDDE

Lighter +30%#FDABAF

Lighter +20%#FC797F

Lighter +10%#FA4850

Darker −10%#D6060F

Darker −20%#A5040B

Darker −30%#730308

Darker −40%#410204

More saturated +25%#FF101B

Less saturated −25%#DB343B

Channel breakdown

R249

G22

B32

Red249 (97.6%)

Green22 (8.6%)

Blue32 (12.5%)

Hue357.36°

Saturation (HSL)94.98%

Lightness53.14%

Dominant channelRed

Hex per channelR F9 · G 16 · B 20

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F91620 (chemical formula)

Formula
1,740,596.76 g/mol
91620 atoms

F91620 has a molar mass of 1,740,596.76 g/mol, made up of 91620 atoms across 1 element: 91620 × F.

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Molar mass

Molar mass1,740,596.76 g/mol

Total atoms per molecule91620

Distinct elements1

Mass of one molecule2.8903289 × 10^-18 g

Molecules per gram3.4598138 × 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 × 91620)1,740,596.76 g/mol, 100%

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Elements in this formula

Fluorine

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