Recognised as Colour

#C5FF66

#C5FF66
Green
Light
Nearest: Yellow green

#C5FF66 is a green with RGB values 197, 255, 102 and HSL 83°, 100%, 70%. It is a light colour, so black text on it reaches 17.9:1 contrast (AAA for normal text). The nearest named colour is Yellow green.

Colour values

#C5FF66#C5FF66

HEX#C5FF66

RGBrgb(197, 255, 102)

RGB (0–1)0.7725, 1, 0.4

RGB percentages77.3%, 100%, 40%

HSLhsl(82.7, 100%, 70%)

HSV / HSBhsv(82.7, 60%, 100%)

CMYK22.7%, 0%, 60%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,975,974

CSS custom property--colour: #C5FF66;

Brightness & contrast

Relative luminance0.8435WCAG 2.x, 0 is black and 1 is white

Perceived brightness225.7 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 17.87:1

Contrast with white1.18:1WCAG normal text: Fail

Contrast with black17.87:1WCAG normal text: AAA

Greyscale equivalent#E8E8E8

Inverted#3A0099

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#FFEF54no red cones; affects about 1% of men; ΔE 30.1 from the original

Deuteranopia#FFEC71no green cones; the most common form, about 1% of men; ΔE 32.6 from the original

Tritanopia#CBF4DFno blue cones; rare, and affects men and women equally; ΔE 64.2 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text1.18:1WCAG large text: Fail

Contrast with black, large text17.87:1WCAG large text: AAA

Named colours

Yellow green · ΔE 17.3 Green yellow · ΔE 20.2 Pale green · ΔE 28.2 Light green · ΔE 29.9 Lawn green · ΔE 33.7 Limegreen · ΔE 34

Nearest named CSS colourYellow green (#9ACD32)ΔE 17.32, a distinctly different colour

Hue familygreen

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#A066FF

Analogous#FFEC66, #79FF66

Triadic#66C5FF, #FF66C5

Split complementary#6679FF, #ED66FF

Tetradic#66FFEC, #A066FF, #FF6678

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#FFFFFF

Lighter +30%#FFFFFF

Lighter +20%#ECFFCC

Lighter +10%#D8FF99

Darker −10%#B2FF33

Darker −20%#9EFF00

Darker −30%#7FCC00

Darker −40%#5F9900

More saturated +25%#C5FF66

Less saturated −25%#C0EC79

Channel breakdown

R197

G255

B102

Red197 (77.3%)

Green255 (100%)

Blue102 (40%)

Hue82.75°

Saturation (HSL)100%

Lightness70%

Dominant channelGreen

Hex per channelR C5 · G FF · B 66

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Harmonies

Lighter and darker

Similar named colours

Also reads as

C5FF66 (chemical formula)

Formula
1,332.921 g/mol
72 atoms

C5FF66 has a molar mass of 1,332.921 g/mol, made up of 72 atoms across 2 elements: 5 × C, 67 × F.

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Molar mass

Molar mass1,332.921 g/mol

Total atoms per molecule72

Distinct elements2

Mass of one molecule2.2133674 × 10^-21 g

Molecules per gram4.5180028 × 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

C4.5%

F95.5%

Carbon (C × 5)60.055 g/mol, 4.506%

Fluorine (F × 67)1,272.866 g/mol, 95.494%

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