Recognised as Colour

#F34573

#F34573
Red
Dark
Nearest: Crimson

#F34573 is a red with RGB values 243, 69, 115 and HSL 344°, 88%, 61%. It is a dark colour, so black text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#F34573#F34573

HEX#F34573

RGBrgb(243, 69, 115)

RGB (0–1)0.9529, 0.2706, 0.451

RGB percentages95.3%, 27.1%, 45.1%

HSLhsl(344.1, 87.9%, 61.2%)

HSV / HSBhsv(344.1, 71.6%, 95.3%)

CMYK0%, 71.6%, 52.7%, 4.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,943,027

CSS custom property--colour: #F34573;

Brightness & contrast

Relative luminance0.24549WCAG 2.x, 0 is black and 1 is white

Perceived brightness148.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.91:1

Contrast with white3.55:1WCAG normal text: Fail

Contrast with black5.91:1WCAG normal text: AA

Greyscale equivalent#6D6D6D

Inverted#0CBA8C

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#717174no red cones; affects about 1% of men; ΔE 70 from the original

Deuteranopia#9E956Fno green cones; the most common form, about 1% of men; ΔE 71.7 from the original

Tritanopia#FF1A58no blue cones; rare, and affects men and women equally; ΔE 18.2 from the original

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

Contrast with white, large text3.55:1WCAG large text: AA

Contrast with black, large text5.91:1WCAG large text: AAA

Named colours

Crimson · ΔE 22 Indian red · ΔE 25.1 Deep pink · ΔE 25.5 Hot pink · ΔE 26.5 Pale violetred · ΔE 26.8 Light coral · ΔE 27.8

Nearest named CSS colourCrimson (#DC143C)ΔE 21.98, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#45F3C5

Analogous#F345CA, #F36E45

Triadic#73F345, #4573F3

Split complementary#45F36E, #45CAF3

Tetradic#CAF345, #45F3C5, #6E45F3

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FCD5DF

Lighter +20%#F9A5BB

Lighter +10%#F67597

Darker −10%#F0154F

Darker −20%#C50D3E

Darker −30%#950A2F

Darker −40%#650720

More saturated +25%#FF396D

Less saturated −25%#DA5E7F

Channel breakdown

R243

G69

B115

Red243 (95.3%)

Green69 (27.1%)

Blue115 (45.1%)

Hue344.14°

Saturation (HSL)87.88%

Lightness61.18%

Dominant channelRed

Hex per channelR F3 · G 45 · B 73

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F34573 (chemical formula)

Formula
656,817.854 g/mol
34573 atoms

F34573 has a molar mass of 656,817.854 g/mol, made up of 34573 atoms across 1 element: 34573 × F.

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Molar mass

Molar mass656,817.854 g/mol

Total atoms per molecule34573

Distinct elements1

Mass of one molecule1.0906717 × 10^-18 g

Molecules per gram9.1686618 × 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 × 34573)656,817.854 g/mol, 100%

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Elements in this formula

Fluorine

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