Recognised as Colour
#C581B6
- #C581B6
- Magenta
- Dark
- Nearest: Plum
#C581B6 is a magenta with RGB values 197, 129, 182 and HSL 313°, 37%, 64%. It is a dark colour, so black text on it reaches 7.2:1 contrast (AAA for normal text). The nearest named colour is Plum.
Colour values
#C581B6#C581B6
HEX#C581B6
RGBrgb(197, 129, 182)
RGB (0–1)0.7725, 0.5059, 0.7137
RGB percentages77.3%, 50.6%, 71.4%
HSLhsl(313.2, 37%, 63.9%)
HSV / HSBhsv(313.2, 34.5%, 77.3%)
CMYK0%, 34.5%, 7.6%, 22.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,943,798
CSS custom property--colour: #C581B6;
Brightness & contrast
Relative luminance0.30948WCAG 2.x, 0 is black and 1 is white
Perceived brightness158.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.19:1
Contrast with white2.92:1WCAG normal text: Fail
Contrast with black7.19:1WCAG normal text: AAA
Greyscale equivalent#939393
Inverted#3A7E49
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.92:1WCAG large text: Fail
Contrast with black, large text7.19:1WCAG large text: AAA
Named colours
Hue familymagenta
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#81C590
Analogous#B281C5, #C58194
Triadic#B6C581, #81B6C5
Split complementary#94C581, #81C5B2
Tetradic#C5B281, #81C590, #8194C5
Tints, shades & saturation
Channel breakdown
R197
G129
B182
Red197 (77.3%)
Green129 (50.6%)
Blue182 (71.4%)
Hue313.24°
Saturation (HSL)36.96%
Lightness63.92%
Dominant channelRed
Hex per channelR C5 · G 81 · B B6
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Also reads as
C581B6 (chemical formula)
- Formula
- 7,043.251 g/mol
- 587 atoms
C581B6 has a molar mass of 7,043.251 g/mol, made up of 587 atoms across 2 elements: 581 × C, 6 × B.
Molar mass
Molar mass7,043.251 g/mol
Total atoms per molecule587
Distinct elements2
Mass of one molecule1.1695593 × 10^-20 g
Molecules per gram8.5502288 × 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
C99.1%
B0.9%
Carbon (C × 581)6,978.391 g/mol, 99.079%
Boron (B × 6)64.86 g/mol, 0.921%
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