Recognised as Colour
#AC42B1
- #AC42B1
- Magenta
- Dark
- Nearest: Medium orchid
#AC42B1 is a magenta with RGB values 172, 66, 177 and HSL 297°, 46%, 48%. It is a dark colour, so white text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Medium orchid.
Colour values
#AC42B1#AC42B1
HEX#AC42B1
RGBrgb(172, 66, 177)
RGB (0–1)0.6745, 0.2588, 0.6941
RGB percentages67.5%, 25.9%, 69.4%
HSLhsl(297.3, 45.7%, 47.6%)
HSV / HSBhsv(297.3, 62.7%, 69.4%)
CMYK2.8%, 62.7%, 0%, 30.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,289,265
CSS custom property--colour: #AC42B1;
Brightness & contrast
Relative luminance0.15841WCAG 2.x, 0 is black and 1 is white
Perceived brightness122.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.04:1
Contrast with white5.04:1WCAG normal text: AA
Contrast with black4.17:1WCAG normal text: Fail
Greyscale equivalent#616161
Inverted#53BD4E
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.04:1WCAG large text: AAA
Contrast with black, large text4.17:1WCAG large text: AA
Named colours
Hue familymagenta
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#47B142
Analogous#7442B1, #B1427E
Triadic#B1AC42, #42B1AC
Split complementary#7FB142, #42B174
Tetradic#B17442, #47B142, #427EB1
Tints, shades & saturation
Channel breakdown
R172
G66
B177
Red172 (67.5%)
Green66 (25.9%)
Blue177 (69.4%)
Hue297.3°
Saturation (HSL)45.68%
Lightness47.65%
Dominant channelBlue
Hex per channelR AC · G 42 · B B1
Keep nerding
Every link below is a page Nerdulator can generate from what it already knows about this value.
Harmonies
Similar named colours
Also reads as
Ac42B1 (chemical formula)
- Formula
- 9,544.81 g/mol
- 43 atoms
Ac42B1 has a molar mass of 9,544.81 g/mol, made up of 43 atoms across 2 elements: 42 × Ac, 1 × B.
Molar mass
Molar mass9,544.81 g/mol
Total atoms per molecule43
Distinct elements2
Mass of one molecule1.584953 × 10^-20 g
Molecules per gram6.3093354 × 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
Ac99.9%
B0.1%
Actinium (Ac × 42)9,534 g/mol, 99.887%
Boron (B)10.81 g/mol, 0.113%
Keep nerding
Every link below is a page Nerdulator can generate from what it already knows about this value.
Nerdulate something else
Nothing in mind? Surprise me · today’s page