Recognised as Colour
#CA1691
- #CA1691
- Magenta
- Dark
- Nearest: Medium violet red
#CA1691 is a magenta with RGB values 202, 22, 145 and HSL 319°, 80%, 44%. It is a dark colour, so white text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Medium violet red.
Colour values
#CA1691#CA1691
HEX#CA1691
RGBrgb(202, 22, 145)
RGB (0–1)0.7922, 0.0863, 0.5686
RGB percentages79.2%, 8.6%, 56.9%
HSLhsl(319, 80.4%, 43.9%)
HSV / HSBhsv(319, 89.1%, 79.2%)
CMYK0%, 89.1%, 28.2%, 20.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer13,244,049
CSS custom property--colour: #CA1691;
Brightness & contrast
Relative luminance0.15175WCAG 2.x, 0 is black and 1 is white
Perceived brightness122 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.2:1
Contrast with white5.2:1WCAG normal text: AA
Contrast with black4.03:1WCAG normal text: Fail
Greyscale equivalent#454545
Inverted#35E96E
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.2:1WCAG large text: AAA
Contrast with black, large text4.03:1WCAG large text: AA
Named colours
Hue familymagenta
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#16CA4F
Analogous#A916CA, #CA1637
Triadic#91CA16, #1691CA
Split complementary#37CA16, #16CAA9
Tetradic#CAA916, #16CA4F, #1637CA
Tints, shades & saturation
Channel breakdown
R202
G22
B145
Red202 (79.2%)
Green22 (8.6%)
Blue145 (56.9%)
Hue319°
Saturation (HSL)80.36%
Lightness43.92%
Dominant channelRed
Hex per channelR CA · G 16 · B 91
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Harmonies
Similar named colours
Also reads as
Ca1691 (chemical formula)
- Formula
- 67,771.898 g/mol
- 1691 atoms
Ca1691 has a molar mass of 67,771.898 g/mol, made up of 1691 atoms across 1 element: 1691 × Ca.
Molar mass
Molar mass67,771.898 g/mol
Total atoms per molecule1691
Distinct elements1
Mass of one molecule1.1253788 × 10^-19 g
Molecules per gram8.8858966 × 10^18
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
Ca100%
Calcium (Ca × 1691)67,771.898 g/mol, 100%
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