Recognised as Colour
#C637DB
- #C637DB
- Magenta
- Dark
- Nearest: Dark orchid
#C637DB is a magenta with RGB values 198, 55, 219 and HSL 292°, 69%, 54%. It is a dark colour, so black text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Dark orchid.
Colour values
#C637DB#C637DB
HEX#C637DB
RGBrgb(198, 55, 219)
RGB (0–1)0.7765, 0.2157, 0.8588
RGB percentages77.6%, 21.6%, 85.9%
HSLhsl(292.3, 69.5%, 53.7%)
HSV / HSBhsv(292.3, 74.9%, 85.9%)
CMYK9.6%, 74.9%, 0%, 14.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,990,427
CSS custom property--colour: #C637DB;
Brightness & contrast
Relative luminance0.19853WCAG 2.x, 0 is black and 1 is white
Perceived brightness137.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.97:1
Contrast with white4.22:1WCAG normal text: Fail
Contrast with black4.97:1WCAG normal text: AA
Greyscale equivalent#616161
Inverted#39C824
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.22:1WCAG large text: AA
Contrast with black, large text4.97:1WCAG large text: AAA
Named colours
Hue familymagenta
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#4CDB37
Analogous#7437DB, #DB379E
Triadic#DBC637, #37DBC6
Split complementary#9EDB37, #37DB74
Tetradic#DB7437, #4CDB37, #379EDB
Tints, shades & saturation
Channel breakdown
R198
G55
B219
Red198 (77.6%)
Green55 (21.6%)
Blue219 (85.9%)
Hue292.32°
Saturation (HSL)69.49%
Lightness53.73%
Dominant channelBlue
Hex per channelR C6 · G 37 · B DB
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Harmonies
Similar named colours
Also reads as
C637Db (chemical formula)
- Formula
- 7,919.007 g/mol
- 638 atoms
C637Db has a molar mass of 7,919.007 g/mol, made up of 638 atoms across 2 elements: 637 × C, 1 × Db.
Molar mass
Molar mass7,919.007 g/mol
Total atoms per molecule638
Distinct elements2
Mass of one molecule1.314982 × 10^-20 g
Molecules per gram7.6046665 × 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
C96.6%
Db3.4%
Carbon (C × 637)7,651.007 g/mol, 96.616%
Dubnium (Db)268 g/mol, 3.384%
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