Recognised as Colour
#C21340
- #C21340
- Red
- Dark
- Nearest: Crimson
#C21340 is a red with RGB values 194, 19, 64 and HSL 345°, 82%, 42%. It is a dark colour, so white text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Crimson.
Colour values
#C21340#C21340
HEX#C21340
RGBrgb(194, 19, 64)
RGB (0–1)0.7608, 0.0745, 0.251
RGB percentages76.1%, 7.5%, 25.1%
HSLhsl(344.6, 82.2%, 41.8%)
HSV / HSBhsv(344.6, 90.2%, 76.1%)
CMYK0%, 90.2%, 67%, 23.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,718,912
CSS custom property--colour: #C21340;
Brightness & contrast
Relative luminance0.12305WCAG 2.x, 0 is black and 1 is white
Perceived brightness109.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.07:1
Contrast with white6.07:1WCAG normal text: AA
Contrast with black3.46:1WCAG normal text: Fail
Greyscale equivalent#3B3B3B
Inverted#3DECBF
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.07:1WCAG large text: AAA
Contrast with black, large text3.46:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#13C295
Analogous#C21398, #C23D13
Triadic#40C213, #1340C2
Split complementary#13C23D, #1398C2
Tetradic#98C213, #13C295, #3D13C2
Tints, shades & saturation
Channel breakdown
R194
G19
B64
Red194 (76.1%)
Green19 (7.5%)
Blue64 (25.1%)
Hue344.57°
Saturation (HSL)82.16%
Lightness41.76%
Dominant channelRed
Hex per channelR C2 · G 13 · B 40
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Also reads as
C21340 (chemical formula)
- Formula
- 256,314.74 g/mol
- 21340 atoms
C21340 has a molar mass of 256,314.74 g/mol, made up of 21340 atoms across 1 element: 21340 × C.
Molar mass
Molar mass256,314.74 g/mol
Total atoms per molecule21340
Distinct elements1
Mass of one molecule4.2562064 × 10^-19 g
Molecules per gram2.3495101 × 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
C100%
Carbon (C × 21340)256,314.74 g/mol, 100%
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