Recognised as Colour

#ACFF39

#ACFF39
Green
Light
Nearest: Green yellow

#ACFF39 is a green with RGB values 172, 255, 57 and HSL 85°, 100%, 61%. It is a light colour, so black text on it reaches 17.1:1 contrast (AAA for normal text). The nearest named colour is Green yellow.

Colour values

#ACFF39#ACFF39

HEX#ACFF39

RGBrgb(172, 255, 57)

RGB (0–1)0.6745, 1, 0.2235

RGB percentages67.5%, 100%, 22.4%

HSLhsl(85.2, 100%, 61.2%)

HSV / HSBhsv(85.2, 77.6%, 100%)

CMYK32.5%, 0%, 77.6%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,337,529

CSS custom property--colour: #ACFF39;

Brightness & contrast

Relative luminance0.80586WCAG 2.x, 0 is black and 1 is white

Perceived brightness217.7 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 17.12:1

Contrast with white1.23:1WCAG normal text: Fail

Contrast with black17.12:1WCAG normal text: AAA

Greyscale equivalent#DFDFDF

Inverted#5300C6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#FFEC00no red cones; affects about 1% of men; ΔE 41.7 from the original

Deuteranopia#FFE64Fno green cones; the most common form, about 1% of men; ΔE 45.3 from the original

Tritanopia#B0F4DBno blue cones; rare, and affects men and women equally; ΔE 78.5 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text1.23:1WCAG large text: Fail

Contrast with black, large text17.12:1WCAG large text: AAA

Named colours

Green yellow · ΔE 2.6 Lawn green · ΔE 16.7 Chartreuse · ΔE 17.1 Yellow green · ΔE 24.6 Limegreen · ΔE 30.1 Lime · ΔE 34.2

Nearest named CSS colourGreen yellow (#ADFF2F)ΔE 2.6, a close match

Hue familygreen

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#8C39FF

Analogous#FFEF39, #49FF39

Triadic#39ACFF, #FF39AC

Split complementary#3949FF, #EF39FF

Tetradic#39FFEF, #8C39FF, #FF3949

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#ECFFD2

Lighter +20%#D7FF9F

Lighter +10%#C1FF6C

Darker −10%#97FF06

Darker −20%#7AD200

Darker −30%#5C9F00

Darker −40%#3F6C00

More saturated +25%#ACFF39

Less saturated −25%#A8E652

Channel breakdown

R172

G255

B57

Red172 (67.5%)

Green255 (100%)

Blue57 (22.4%)

Hue85.15°

Saturation (HSL)100%

Lightness61.18%

Dominant channelGreen

Hex per channelR AC · G FF · B 39

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Harmonies

Lighter and darker

Similar named colours

Also reads as

AcFF39 (chemical formula)

Formula
986.92 g/mol
41 atoms

AcFF39 has a molar mass of 986.92 g/mol, made up of 41 atoms across 2 elements: 1 × Ac, 40 × F.

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Molar mass

Molar mass986.92 g/mol

Total atoms per molecule41

Distinct elements2

Mass of one molecule1.6388192 × 10^-21 g

Molecules per gram6.1019543 × 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

Ac23%

F77%

Actinium (Ac)227 g/mol, 23.001%

Fluorine (F × 40)759.92 g/mol, 76.999%

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