Recognised as Colour
#C5FF42
- #C5FF42
- Green
- Light
- Nearest: Green yellow
#C5FF42 is a green with RGB values 197, 255, 66 and HSL 78°, 100%, 63%. It is a light colour, so black text on it reaches 17.8:1 contrast (AAA for normal text). The nearest named colour is Green yellow.
Colour values
#C5FF42#C5FF42
HEX#C5FF42
RGBrgb(197, 255, 66)
RGB (0–1)0.7725, 1, 0.2588
RGB percentages77.3%, 100%, 25.9%
HSLhsl(78.4, 100%, 62.9%)
HSV / HSBhsv(78.4, 74.1%, 100%)
CMYK22.7%, 0%, 74.1%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,975,938
CSS custom property--colour: #C5FF42;
Brightness & contrast
Relative luminance0.83784WCAG 2.x, 0 is black and 1 is white
Perceived brightness224.2 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 17.76:1
Contrast with white1.18:1WCAG normal text: Fail
Contrast with black17.76:1WCAG normal text: AAA
Greyscale equivalent#E5E5E5
Inverted#3A00BD
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.18:1WCAG large text: Fail
Contrast with black, large text17.76:1WCAG large text: AAA
Named colours
Hue familygreen
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#7C42FF
Analogous#FFDB42, #66FF42
Triadic#42C5FF, #FF42C5
Split complementary#4266FF, #DB42FF
Tetradic#42FFDB, #7C42FF, #FF4266
Tints, shades & saturation
Channel breakdown
R197
G255
B66
Red197 (77.3%)
Green255 (100%)
Blue66 (25.9%)
Hue78.41°
Saturation (HSL)100%
Lightness62.94%
Dominant channelGreen
Hex per channelR C5 · G FF · B 42
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Harmonies
Similar named colours
Also reads as
C5FF42 (chemical formula)
- Formula
- 876.969 g/mol
- 48 atoms
C5FF42 has a molar mass of 876.969 g/mol, made up of 48 atoms across 2 elements: 5 × C, 43 × F.
Molar mass
Molar mass876.969 g/mol
Total atoms per molecule48
Distinct elements2
Mass of one molecule1.4562413 × 10^-21 g
Molecules per gram6.8669939 × 10^20
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
C6.8%
F93.2%
Carbon (C × 5)60.055 g/mol, 6.848%
Fluorine (F × 43)816.914 g/mol, 93.152%
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