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Colour

#A9FF18

  • #A9FF18
  • Green
  • Light
  • Nearest: Green yellow

#A9FF18 is a green with RGB values 169, 255, 24 and HSL 82°, 100%, 55%. It is a light colour, so black text on it reaches 17:1 contrast (AAA for normal text). The nearest named colour is Green yellow.

Colour values

#A9FF18#A9FF18
HEX#A9FF18
RGBrgb(169, 255, 24)
RGB (0–1)0.6627, 1, 0.0941
RGB percentages66.3%, 100%, 9.4%
HSLhsl(82.3, 100%, 54.7%)
HSV / HSBhsv(82.3, 90.6%, 100%)
CMYK33.7%, 0%, 90.6%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,140,888
CSS custom property--colour: #A9FF18;

Brightness & contrast

Relative luminance0.80021WCAG 2.x, 0 is black and 1 is white
Perceived brightness216.3 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 17:1
Contrast with white1.23:1WCAG normal text: Fail
Contrast with black17:1WCAG normal text: AAA
Greyscale equivalent#DCDCDC
Inverted#5600E7

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#FFEB00no red cones; affects about 1% of men; ΔE 42.9 from the original
Deuteranopia#FFE53Dno green cones; the most common form, about 1% of men; ΔE 47.2 from the original
Tritanopia#ADF4D9no blue cones; rare, and affects men and women equally; ΔE 84.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.23:1WCAG large text: Fail
Contrast with black, large text17:1WCAG large text: AAA

Named colours

Green yellow · ΔE 4.4Lawn green · ΔE 13.7Chartreuse · ΔE 13.7Yellow green · ΔE 29.5Lime · ΔE 32Limegreen · ΔE 33.4
Nearest named CSS colourGreen yellow (#ADFF2F)ΔE 4.45, a close match
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6E18FF
Analogous#FFE118, #36FF18
Triadic#18A9FF, #FF18A9
Split complementary#1836FF, #E218FF
Tetradic#18FFE1, #6E18FF, #FF1836

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F5FFE4
Lighter +30%#E2FFB1
Lighter +20%#CFFF7E
Lighter +10%#BCFF4B
Darker −10%#8FE400
Darker −20%#6FB100
Darker −30%#4F7E00
Darker −40%#2F4B00
More saturated +25%#A9FF18
Less saturated −25%#A2E235

Channel breakdown

R169
G255
B24
Red169 (66.3%)
Green255 (100%)
Blue24 (9.4%)
Hue82.34°
Saturation (HSL)100%
Lightness54.71%
Dominant channelGreen
Hex per channelR A9 · G FF · B 18

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Every value on this page was computed from “a9ff18” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.