Recognised as Colour
#FF21B6
- #FF21B6
- Magenta
- Dark
- Nearest: Deep pink
#FF21B6 is a magenta with RGB values 255, 33, 182 and HSL 320°, 100%, 56%. It is a dark colour, so black text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Deep pink.
Colour values
#FF21B6#FF21B6
HEX#FF21B6
RGBrgb(255, 33, 182)
RGB (0–1)1, 0.1294, 0.7137
RGB percentages100%, 12.9%, 71.4%
HSLhsl(319.7, 100%, 56.5%)
HSV / HSBhsv(319.7, 87.1%, 100%)
CMYK0%, 87.1%, 28.6%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,720,310
CSS custom property--colour: #FF21B6;
Brightness & contrast
Relative luminance0.25725WCAG 2.x, 0 is black and 1 is white
Perceived brightness154.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.15:1
Contrast with white3.42:1WCAG normal text: Fail
Contrast with black6.15:1WCAG normal text: AA
Greyscale equivalent#5B5B5B
Inverted#00DE49
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.42:1WCAG large text: AA
Contrast with black, large text6.15:1WCAG large text: AAA
Named colours
Hue familymagenta
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#21FF6A
Analogous#D921FF, #FF2147
Triadic#B6FF21, #21B6FF
Split complementary#47FF21, #21FFD9
Tetradic#FFD921, #21FF6A, #2147FF
Tints, shades & saturation
Channel breakdown
R255
G33
B182
Red255 (100%)
Green33 (12.9%)
Blue182 (71.4%)
Hue319.73°
Saturation (HSL)100%
Lightness56.47%
Dominant channelRed
Hex per channelR FF · G 21 · B B6
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Also reads as
FF21B6 (chemical formula)
- Formula
- 482.816 g/mol
- 28 atoms
FF21B6 has a molar mass of 482.816 g/mol, made up of 28 atoms across 2 elements: 22 × F, 6 × B.
Molar mass
Molar mass482.816 g/mol
Total atoms per molecule28
Distinct elements2
Mass of one molecule8.0173483 × 10^-22 g
Molecules per gram1.2472952 × 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
F86.6%
B13.4%
Fluorine (F × 22)417.956 g/mol, 86.566%
Boron (B × 6)64.86 g/mol, 13.434%
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