Recognised as Colour

#CEFF42

#CEFF42
Green
Light
Nearest: Green yellow

#CEFF42 is a green with RGB values 206, 255, 66 and HSL 76°, 100%, 63%. It is a light colour, so black text on it reaches 18:1 contrast (AAA for normal text). The nearest named colour is Green yellow.

Colour values

#CEFF42#CEFF42

HEX#CEFF42

RGBrgb(206, 255, 66)

RGB (0–1)0.8078, 1, 0.2588

RGB percentages80.8%, 100%, 25.9%

HSLhsl(75.6, 100%, 62.9%)

HSV / HSBhsv(75.6, 74.1%, 100%)

CMYK19.2%, 0%, 74.1%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,565,762

CSS custom property--colour: #CEFF42;

Brightness & contrast

Relative luminance0.85035WCAG 2.x, 0 is black and 1 is white

Perceived brightness226.6 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 18.01:1

Contrast with white1.17:1WCAG normal text: Fail

Contrast with black18.01:1WCAG normal text: AAA

Greyscale equivalent#E7E7E7

Inverted#3100BD

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#FFEF14no red cones; affects about 1% of men; ΔE 28 from the original

Deuteranopia#FFED54no green cones; the most common form, about 1% of men; ΔE 29.5 from the original

Tritanopia#D8F2DBno blue cones; rare, and affects men and women equally; ΔE 75.8 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text1.17:1WCAG large text: Fail

Contrast with black, large text18.01:1WCAG large text: AAA

Named colours

Green yellow · ΔE 13.3 Yellow green · ΔE 21.5 Yellow · ΔE 23.9 Lawn green · ΔE 29.3 Chartreuse · ΔE 29.5 Limegreen · ΔE 39

Nearest named CSS colourGreen yellow (#ADFF2F)ΔE 13.3, a distinctly different colour

Hue familygreen

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#7342FF

Analogous#FFD142, #70FF42

Triadic#42CEFF, #FF42CE

Split complementary#4270FF, #D142FF

Tetradic#42FFD1, #7342FF, #FF4270

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#F6FFDB

Lighter +20%#E8FFA8

Lighter +10%#DBFF75

Darker −10%#C1FF0F

Darker −20%#A2DB00

Darker −30%#7CA800

Darker −40%#577500

More saturated +25%#CEFF42

Less saturated −25%#C3E75A

Channel breakdown

R206

G255

B66

Red206 (80.8%)

Green255 (100%)

Blue66 (25.9%)

Hue75.56°

Saturation (HSL)100%

Lightness62.94%

Dominant channelGreen

Hex per channelR CE · G FF · B 42

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Harmonies

Lighter and darker

Similar named colours

Also reads as

CeFF42 (chemical formula)

Formula
957.034 g/mol
44 atoms

CeFF42 has a molar mass of 957.034 g/mol, made up of 44 atoms across 2 elements: 1 × Ce, 43 × F.

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Molar mass

Molar mass957.034 g/mol

Total atoms per molecule44

Distinct elements2

Mass of one molecule1.5891923 × 10^-21 g

Molecules per gram6.2925045 × 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

Ce14.6%

F85.4%

Cerium (Ce)140.12 g/mol, 14.641%

Fluorine (F × 43)816.914 g/mol, 85.359%

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