Recognised as Colour

#FF21FF

#FF21FF
Magenta
Dark
Nearest: Fuchsia

#FF21FF is a magenta with RGB values 255, 33, 255 and HSL 300°, 100%, 56%. It is a dark colour, so black text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Fuchsia.

Colour values

#FF21FF#FF21FF

HEX#FF21FF

RGBrgb(255, 33, 255)

RGB (0–1)1, 0.1294, 1

RGB percentages100%, 12.9%, 100%

HSLhsl(300, 100%, 56.5%)

HSV / HSBhsv(300, 87.1%, 100%)

CMYK0%, 87.1%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,720,383

CSS custom property--colour: #FF21FF;

Brightness & contrast

Relative luminance0.29568WCAG 2.x, 0 is black and 1 is white

Perceived brightness165.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.91:1

Contrast with white3.04:1WCAG normal text: Fail

Contrast with black6.91:1WCAG normal text: AA

Greyscale equivalent#606060

Inverted#00DE00

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0083FFno red cones; affects about 1% of men; ΔE 79.4 from the original

Deuteranopia#6D9DFAno green cones; the most common form, about 1% of men; ΔE 85.3 from the original

Tritanopia#FF5299no blue cones; rare, and affects men and women equally; ΔE 63.1 from the original

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

Contrast with white, large text3.04:1WCAG large text: AA

Contrast with black, large text6.91:1WCAG large text: AAA

Named colours

Fuchsia · ΔE 3.4 Magenta · ΔE 3.4 Dark violet · ΔE 30.9 Dark orchid · ΔE 35.2 Blue violet · ΔE 35.5 Medium orchid · ΔE 39

Nearest named CSS colourFuchsia (#FF00FF)ΔE 3.36, a close match

Hue familymagenta

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#21FF21

Analogous#9021FF, #FF2190

Triadic#FFFF21, #21FFFF

Split complementary#90FF21, #21FF90

Tetradic#FF9021, #21FF21, #2190FF

Tints, shades & saturation

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

Lighter +40%#FFEDFF

Lighter +30%#FFBAFF

Lighter +20%#FF87FF

Lighter +10%#FF54FF

Darker −10%#ED00ED

Darker −20%#BA00BA

Darker −30%#870087

Darker −40%#540054

More saturated +25%#FF21FF

Less saturated −25%#E33DE3

Channel breakdown

R255

G33

B255

Red255 (100%)

Green33 (12.9%)

Blue255 (100%)

Hue300°

Saturation (HSL)100%

Lightness56.47%

Dominant channelRed and Blue

Hex per channelR FF · G 21 · B FF

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FF21FF (chemical formula)

Formula
455.952 g/mol
24 atoms

FF21FF has a molar mass of 455.952 g/mol, made up of 24 atoms across 1 element: 24 × F.

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Molar mass

Molar mass455.952 g/mol

Total atoms per molecule24

Distinct elements1

Mass of one molecule7.5712611 × 10^-22 g

Molecules per gram1.3207839 × 10^21

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 × 24)455.952 g/mol, 100%

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Elements in this formula

Fluorine

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