Recognised as Colour

#FF2864

#FF2864
Red
Dark
Nearest: Crimson

#FF2864 is a red with RGB values 255, 40, 100 and HSL 343°, 100%, 58%. It is a dark colour, so black text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#FF2864#FF2864

HEX#FF2864

RGBrgb(255, 40, 100)

RGB (0–1)1, 0.1569, 0.3922

RGB percentages100%, 15.7%, 39.2%

HSLhsl(343.3, 100%, 57.8%)

HSV / HSBhsv(343.3, 84.3%, 100%)

CMYK0%, 84.3%, 60.8%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,722,020

CSS custom property--colour: #FF2864;

Brightness & contrast

Relative luminance0.23698WCAG 2.x, 0 is black and 1 is white

Perceived brightness146.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.74:1

Contrast with white3.66:1WCAG normal text: Fail

Contrast with black5.74:1WCAG normal text: AA

Greyscale equivalent#5A5A5A

Inverted#00D79B

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6C6A65no red cones; affects about 1% of men; ΔE 81.5 from the original

Deuteranopia#A1955Eno green cones; the most common form, about 1% of men; ΔE 82.6 from the original

Tritanopia#FF0044no blue cones; rare, and affects men and women equally; ΔE 16.7 from the original

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

Contrast with white, large text3.66:1WCAG large text: AA

Contrast with black, large text5.74:1WCAG large text: AAA

Named colours

Crimson · ΔE 16.2 Deep pink · ΔE 28.5 Firebrick · ΔE 31.9 Tomato · ΔE 32.4 Indian red · ΔE 33.5 Brown · ΔE 34.9

Nearest named CSS colourCrimson (#DC143C)ΔE 16.18, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#28FFC3

Analogous#FF28D0, #FF5728

Triadic#64FF28, #2864FF

Split complementary#28FF57, #28D0FF

Tetradic#D0FF28, #28FFC3, #5728FF

Tints, shades & saturation

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

Lighter +40%#FFF4F7

Lighter +30%#FFC1D2

Lighter +20%#FF8EAE

Lighter +10%#FF5B89

Darker −10%#F40044

Darker −20%#C10036

Darker −30%#8E0028

Darker −40%#5B0019

More saturated +25%#FF2864

Less saturated −25%#E44370

Channel breakdown

R255

G40

B100

Red255 (100%)

Green40 (15.7%)

Blue100 (39.2%)

Hue343.26°

Saturation (HSL)100%

Lightness57.84%

Dominant channelRed

Hex per channelR FF · G 28 · B 64

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FF2864 (chemical formula)

Formula
54,429.27 g/mol
2865 atoms

FF2864 has a molar mass of 54,429.27 g/mol, made up of 2865 atoms across 1 element: 2865 × F.

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Molar mass

Molar mass54,429.27 g/mol

Total atoms per molecule2865

Distinct elements1

Mass of one molecule9.0381929 × 10^-20 g

Molecules per gram1.1064159 × 10^19

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 × 2865)54,429.27 g/mol, 100%

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Elements in this formula

Fluorine

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