Recognised as Colour

#FF4370

#FF4370
Red
Dark
Nearest: Crimson

#FF4370 is a red with RGB values 255, 67, 112 and HSL 346°, 100%, 63%. It is a dark colour, so black text on it reaches 6.3:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#FF4370#FF4370

HEX#FF4370

RGBrgb(255, 67, 112)

RGB (0–1)1, 0.2627, 0.4392

RGB percentages100%, 26.3%, 43.9%

HSLhsl(345.6, 100%, 63.1%)

HSV / HSBhsv(345.6, 73.7%, 100%)

CMYK0%, 73.7%, 56.1%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,728,944

CSS custom property--colour: #FF4370;

Brightness & contrast

Relative luminance0.26444WCAG 2.x, 0 is black and 1 is white

Perceived brightness153.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.29:1

Contrast with white3.34:1WCAG normal text: Fail

Contrast with black6.29:1WCAG normal text: AA

Greyscale equivalent#6E6E6E

Inverted#00BC8F

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#757471no red cones; affects about 1% of men; ΔE 74.9 from the original

Deuteranopia#A59B6Bno green cones; the most common form, about 1% of men; ΔE 76.5 from the original

Tritanopia#FF0056no blue cones; rare, and affects men and women equally; ΔE 14.5 from the original

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

Contrast with white, large text3.34:1WCAG large text: AA

Contrast with black, large text6.29:1WCAG large text: AAA

Named colours

Crimson · ΔE 18.9 Deep pink · ΔE 27.4 Indian red · ΔE 28 Salmon · ΔE 30.2 Light coral · ΔE 30.3 Hot pink · ΔE 31.1

Nearest named CSS colourCrimson (#DC143C)ΔE 18.88, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#43FFD2

Analogous#FF43CE, #FF7443

Triadic#70FF43, #4370FF

Split complementary#43FF74, #43CEFF

Tetradic#CEFF43, #43FFD2, #7443FF

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFDCE4

Lighter +20%#FFA9BE

Lighter +10%#FF7697

Darker −10%#FF1049

Darker −20%#DC0035

Darker −30%#A90028

Darker −40%#76001C

More saturated +25%#FF4370

Less saturated −25%#E85A7C

Channel breakdown

R255

G67

B112

Red255 (100%)

Green67 (26.3%)

Blue112 (43.9%)

Hue345.64°

Saturation (HSL)100%

Lightness63.14%

Dominant channelRed

Hex per channelR FF · G 43 · B 70

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FF4370 (chemical formula)

Formula
83,040.258 g/mol
4371 atoms

FF4370 has a molar mass of 83,040.258 g/mol, made up of 4371 atoms across 1 element: 4371 × F.

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Molar mass

Molar mass83,040.258 g/mol

Total atoms per molecule4371

Distinct elements1

Mass of one molecule1.3789159 × 10^-19 g

Molecules per gram7.2520738 × 10^18

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 × 4371)83,040.258 g/mol, 100%

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Elements in this formula

Fluorine

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