Recognised as Colour
#F540DB
- #F540DB
- Magenta
- Dark
- Nearest: Medium orchid
#F540DB is a magenta with RGB values 245, 64, 219 and HSL 309°, 90%, 61%. It is a dark colour, so black text on it reaches 6.6:1 contrast (AA for normal text). The nearest named colour is Medium orchid.
Colour values
#F540DB#F540DB
HEX#F540DB
RGBrgb(245, 64, 219)
RGB (0–1)0.9608, 0.251, 0.8588
RGB percentages96.1%, 25.1%, 85.9%
HSLhsl(308.6, 90%, 60.6%)
HSV / HSBhsv(308.6, 73.9%, 96.1%)
CMYK0%, 73.9%, 10.6%, 3.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,072,923
CSS custom property--colour: #F540DB;
Brightness & contrast
Relative luminance0.28194WCAG 2.x, 0 is black and 1 is white
Perceived brightness160.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.64:1
Contrast with white3.16:1WCAG normal text: Fail
Contrast with black6.64:1WCAG normal text: AA
Greyscale equivalent#727272
Inverted#0ABF24
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.16:1WCAG large text: AA
Contrast with black, large text6.64:1WCAG large text: AAA
Named colours
Hue familymagenta
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#40F55A
Analogous#B540F5, #F54080
Triadic#DBF540, #40DBF5
Split complementary#81F540, #40F5B4
Tetradic#F5B440, #40F55A, #4081F5
Tints, shades & saturation
Channel breakdown
R245
G64
B219
Red245 (96.1%)
Green64 (25.1%)
Blue219 (85.9%)
Hue308.62°
Saturation (HSL)90.05%
Lightness60.59%
Dominant channelRed
Hex per channelR F5 · G 40 · B DB
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Also reads as
F540Db (chemical formula)
- Formula
- 10,526.92 g/mol
- 541 atoms
F540Db has a molar mass of 10,526.92 g/mol, made up of 541 atoms across 2 elements: 540 × F, 1 × Db.
Molar mass
Molar mass10,526.92 g/mol
Total atoms per molecule541
Distinct elements2
Mass of one molecule1.7480362 × 10^-20 g
Molecules per gram5.7207054 × 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
F97.5%
Db2.5%
Fluorine (F × 540)10,258.92 g/mol, 97.454%
Dubnium (Db)268 g/mol, 2.546%
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