Recognised as Colour

#F31BFF

#F31BFF
Magenta
Dark
Nearest: Fuchsia

#F31BFF is a magenta with RGB values 243, 27, 255 and HSL 297°, 100%, 55%. It is a dark colour, so black text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Fuchsia.

Colour values

#F31BFF#F31BFF

HEX#F31BFF

RGBrgb(243, 27, 255)

RGB (0–1)0.9529, 0.1059, 1

RGB percentages95.3%, 10.6%, 100%

HSLhsl(296.8, 100%, 55.3%)

HSV / HSBhsv(296.8, 89.4%, 100%)

CMYK4.7%, 89.4%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,932,415

CSS custom property--colour: #F31BFF;

Brightness & contrast

Relative luminance0.27059WCAG 2.x, 0 is black and 1 is white

Perceived brightness159.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.41:1

Contrast with white3.28:1WCAG normal text: Fail

Contrast with black6.41:1WCAG normal text: AA

Greyscale equivalent#595959

Inverted#0CE400

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#007FFFno red cones; affects about 1% of men; ΔE 75.5 from the original

Deuteranopia#5D96FAno green cones; the most common form, about 1% of men; ΔE 83 from the original

Tritanopia#F95398no blue cones; rare, and affects men and women equally; ΔE 66.2 from the original

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

Contrast with white, large text3.28:1WCAG large text: AA

Contrast with black, large text6.41:1WCAG large text: AAA

Named colours

Fuchsia · ΔE 4.7 Magenta · ΔE 4.7 Dark violet · ΔE 27.5 Blue violet · ΔE 31.9 Dark orchid · ΔE 33.2 Medium orchid · ΔE 38.9

Nearest named CSS colourFuchsia (#FF00FF)ΔE 4.72, a close match

Hue familymagenta

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#27FF1B

Analogous#811BFF, #FF1B99

Triadic#FFF31B, #1BFFF3

Split complementary#99FF1B, #1BFF81

Tetradic#FF811B, #27FF1B, #1B99FF

Tints, shades & saturation

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

Lighter +40%#FEE7FF

Lighter +30%#FBB4FF

Lighter +20%#F881FF

Lighter +10%#F64EFF

Darker −10%#DB00E7

Darker −20%#AB00B4

Darker −30%#7A0081

Darker −40%#4A004E

More saturated +25%#F31BFF

Less saturated −25%#DA37E3

Channel breakdown

R243

G27

B255

Red243 (95.3%)

Green27 (10.6%)

Blue255 (100%)

Hue296.84°

Saturation (HSL)100%

Lightness55.29%

Dominant channelBlue

Hex per channelR F3 · G 1B · B FF

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Harmonies

Lighter and darker

Similar named colours

Also reads as

F31BFF (chemical formula)

Formula
637.744 g/mol
34 atoms

F31BFF has a molar mass of 637.744 g/mol, made up of 34 atoms across 2 elements: 33 × F, 1 × B.

Open this reading on its own page →

Molar mass

Molar mass637.744 g/mol

Total atoms per molecule34

Distinct elements2

Mass of one molecule1.0589988 × 10^-21 g

Molecules per gram9.4428811 × 10^20

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

F98.3%

B1.7%

Fluorine (F × 33)626.934 g/mol, 98.305%

Boron (B)10.81 g/mol, 1.695%

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Elements in this formula

Nerdulate something else

Nothing in mind? Surprise me · today’s page