Recognised as Colour

#C8FF18

#C8FF18
Green
Light
Nearest: Green yellow

#C8FF18 is a green with RGB values 200, 255, 24 and HSL 74°, 100%, 55%. 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

#C8FF18#C8FF18

HEX#C8FF18

RGBrgb(200, 255, 24)

RGB (0–1)0.7843, 1, 0.0941

RGB percentages78.4%, 100%, 9.4%

HSLhsl(74.3, 100%, 54.7%)

HSV / HSBhsv(74.3, 90.6%, 100%)

CMYK21.6%, 0%, 90.6%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,172,504

CSS custom property--colour: #C8FF18;

Brightness & contrast

Relative luminance0.83865WCAG 2.x, 0 is black and 1 is white

Perceived brightness224 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 17.77:1

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

Contrast with black17.77:1WCAG normal text: AAA

Greyscale equivalent#E3E3E3

Inverted#3700E7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#FFEE00no red cones; affects about 1% of men; ΔE 30 from the original

Deuteranopia#FFEB3Cno green cones; the most common form, about 1% of men; ΔE 33.2 from the original

Tritanopia#D2F2D9no blue cones; rare, and affects men and women equally; ΔE 84.2 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 text17.77:1WCAG large text: AAA

Named colours

Green yellow · ΔE 11.2 Yellow · ΔE 22.9 Chartreuse · ΔE 25.2 Lawn green · ΔE 25.2 Yellow green · ΔE 27.7 Limegreen · ΔE 41.3

Nearest named CSS colourGreen yellow (#ADFF2F)ΔE 11.15, a distinctly different colour

Hue familygreen

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#4F18FF

Analogous#FFC218, #55FF18

Triadic#18C8FF, #FF18C8

Split complementary#1855FF, #C218FF

Tetradic#18FFC2, #4F18FF, #FF1855

Tints, shades & saturation

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

Lighter +40%#F9FFE4

Lighter +30%#ECFFB1

Lighter +20%#E0FF7E

Lighter +10%#D4FF4B

Darker −10%#AEE400

Darker −20%#87B100

Darker −30%#607E00

Darker −40%#394B00

More saturated +25%#C8FF18

Less saturated −25%#B9E235

Channel breakdown

R200

G255

B24

Red200 (78.4%)

Green255 (100%)

Blue24 (9.4%)

Hue74.29°

Saturation (HSL)100%

Lightness54.71%

Dominant channelGreen

Hex per channelR C8 · G FF · B 18

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Harmonies

Lighter and darker

Similar named colours

Also reads as

C8FF18 (chemical formula)

Formula
457.05 g/mol
27 atoms

C8FF18 has a molar mass of 457.05 g/mol, made up of 27 atoms across 2 elements: 8 × C, 19 × F.

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Molar mass

Molar mass457.05 g/mol

Total atoms per molecule27

Distinct elements2

Mass of one molecule7.5894938 × 10^-22 g

Molecules per gram1.3176109 × 10^21

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

C21%

F79%

Carbon (C × 8)96.088 g/mol, 21.024%

Fluorine (F × 19)360.962 g/mol, 78.976%

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