Recognised as Colour

#F72134

#F72134
Red
Dark
Nearest: Crimson

#F72134 is a red with RGB values 247, 33, 52 and HSL 355°, 93%, 55%. It is a dark colour, so black text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#F72134#F72134

HEX#F72134

RGBrgb(247, 33, 52)

RGB (0–1)0.9686, 0.1294, 0.2039

RGB percentages96.9%, 12.9%, 20.4%

HSLhsl(354.7, 93%, 54.9%)

HSV / HSBhsv(354.7, 86.6%, 96.9%)

CMYK0%, 86.6%, 78.9%, 3.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,195,892

CSS custom property--colour: #F72134;

Brightness & contrast

Relative luminance0.2111WCAG 2.x, 0 is black and 1 is white

Perceived brightness138.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.22:1

Contrast with white4.02:1WCAG normal text: Fail

Contrast with black5.22:1WCAG normal text: AA

Greyscale equivalent#505050

Inverted#08DECB

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6C6232no red cones; affects about 1% of men; ΔE 81.4 from the original

Deuteranopia#9F8E2Ano green cones; the most common form, about 1% of men; ΔE 80.9 from the original

Tritanopia#FF002Cno blue cones; rare, and affects men and women equally; ΔE 7.3 from the original

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

Contrast with white, large text4.02:1WCAG large text: AA

Contrast with black, large text5.22:1WCAG large text: AAA

Named colours

Crimson · ΔE 14.8 Tomato · ΔE 19.8 Red · ΔE 21.4 Orange red · ΔE 24.3 Firebrick · ΔE 25.5 Coral · ΔE 33.3

Nearest named CSS colourCrimson (#DC143C)ΔE 14.81, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#21F7E4

Analogous#F7219F, #F77921

Triadic#34F721, #2134F7

Split complementary#21F779, #219FF7

Tetradic#9FF721, #21F7E4, #7921F7

Tints, shades & saturation

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

Lighter +40%#FEE6E8

Lighter +30%#FCB5BB

Lighter +20%#FB838E

Lighter +10%#F95261

Darker −10%#DD081B

Darker −20%#AC0615

Darker −30%#7B040F

Darker −40%#490309

More saturated +25%#FF192D

Less saturated −25%#DA3E4C

Channel breakdown

R247

G33

B52

Red247 (96.9%)

Green33 (12.9%)

Blue52 (20.4%)

Hue354.67°

Saturation (HSL)93.04%

Lightness54.9%

Dominant channelRed

Hex per channelR F7 · G 21 · B 34

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F72134 (chemical formula)

Formula
1,370,401.732 g/mol
72134 atoms

F72134 has a molar mass of 1,370,401.732 g/mol, made up of 72134 atoms across 1 element: 72134 × F.

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Molar mass

Molar mass1,370,401.732 g/mol

Total atoms per molecule72134

Distinct elements1

Mass of one molecule2.2756056 × 10^-18 g

Molecules per gram4.3944346 × 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 × 72134)1,370,401.732 g/mol, 100%

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Elements in this formula

Fluorine

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