Recognised as Colour

#FF4270

#FF4270
Red
Dark
Nearest: Crimson

#FF4270 is a red with RGB values 255, 66, 112 and HSL 345°, 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

#FF4270#FF4270

HEX#FF4270

RGBrgb(255, 66, 112)

RGB (0–1)1, 0.2588, 0.4392

RGB percentages100%, 25.9%, 43.9%

HSLhsl(345.4, 100%, 62.9%)

HSV / HSBhsv(345.4, 74.1%, 100%)

CMYK0%, 74.1%, 56.1%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,728,688

CSS custom property--colour: #FF4270;

Brightness & contrast

Relative luminance0.26326WCAG 2.x, 0 is black and 1 is white

Perceived brightness153.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.27:1

Contrast with white3.35:1WCAG normal text: Fail

Contrast with black6.27:1WCAG normal text: AA

Greyscale equivalent#6E6E6E

Inverted#00BD8F

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#757471no red cones; affects about 1% of men; ΔE 75.1 from the original

Deuteranopia#A59A6Bno green cones; the most common form, about 1% of men; ΔE 76.2 from the original

Tritanopia#FF0055no blue cones; rare, and affects men and women equally; ΔE 14.7 from the original

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

Contrast with white, large text3.35:1WCAG large text: AA

Contrast with black, large text6.27:1WCAG large text: AAA

Named colours

Crimson · ΔE 19 Deep pink · ΔE 27.1 Indian red · ΔE 28.3 Salmon · ΔE 30.5 Light coral · ΔE 30.6 Hot pink · ΔE 31.1

Nearest named CSS colourCrimson (#DC143C)ΔE 18.95, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#42FFD1

Analogous#FF42CE, #FF7342

Triadic#70FF42, #4270FF

Split complementary#42FF73, #42CEFF

Tetradic#CEFF42, #42FFD1, #7342FF

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFDBE4

Lighter +20%#FFA8BD

Lighter +10%#FF7597

Darker −10%#FF0F49

Darker −20%#DB0035

Darker −30%#A80029

Darker −40%#75001C

More saturated +25%#FF4270

Less saturated −25%#E75A7C

Channel breakdown

R255

G66

B112

Red255 (100%)

Green66 (25.9%)

Blue112 (43.9%)

Hue345.4°

Saturation (HSL)100%

Lightness62.94%

Dominant channelRed

Hex per channelR FF · G 42 · B 70

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FF4270 (chemical formula)

Formula
81,140.458 g/mol
4271 atoms

FF4270 has a molar mass of 81,140.458 g/mol, made up of 4271 atoms across 1 element: 4271 × F.

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Molar mass

Molar mass81,140.458 g/mol

Total atoms per molecule4271

Distinct elements1

Mass of one molecule1.347369 × 10^-19 g

Molecules per gram7.4218718 × 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 × 4271)81,140.458 g/mol, 100%

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Elements in this formula

Fluorine

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