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Recognised as Colour

#A8FF51

  • #A8FF51
  • Green
  • Light
  • Nearest: Green yellow

#A8FF51 is a green with RGB values 168, 255, 81 and HSL 90°, 100%, 66%. 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

#A8FF51#A8FF51
HEX#A8FF51
RGBrgb(168, 255, 81)
RGB (0–1)0.6588, 1, 0.3176
RGB percentages65.9%, 100%, 31.8%
HSLhsl(90, 100%, 65.9%)
HSV / HSBhsv(90, 68.2%, 100%)
CMYK34.1%, 0%, 68.2%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,075,409
CSS custom property--colour: #A8FF51;

Brightness & contrast

Relative luminance0.80439WCAG 2.x, 0 is black and 1 is white
Perceived brightness217.6 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 17.09:1
Contrast with white1.23:1WCAG normal text: Fail
Contrast with black17.09:1WCAG normal text: AAA
Greyscale equivalent#E0E0E0
Inverted#5700AE

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#FFEC36no red cones; affects about 1% of men; ΔE 42.5 from the original
Deuteranopia#FDE560no green cones; the most common form, about 1% of men; ΔE 45.9 from the original
Tritanopia#AAF5DCno blue cones; rare, and affects men and women equally; ΔE 71 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 text17.09:1WCAG large text: AAA

Named colours

Green yellow · ΔE 10.5Lawn green · ΔE 20.8Chartreuse · ΔE 21.3Yellow green · ΔE 21.6Limegreen · ΔE 26.2Pale green · ΔE 33.1
Nearest named CSS colourGreen yellow (#ADFF2F)ΔE 10.48, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A851FF
Analogous#FFFF51, #51FF51
Triadic#51A8FF, #FF51A8
Split complementary#5151FF, #FF51FF
Tetradic#51FFFF, #A851FF, #FF5151

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#F4FFEA
Lighter +20%#DBFFB7
Lighter +10%#C2FF84
Darker −10%#8EFF1E
Darker −20%#75EA00
Darker −30%#5BB700
Darker −40%#428400
More saturated +25%#A8FF51
Less saturated −25%#A8E967

Channel breakdown

R168
G255
B81
Red168 (65.9%)
Green255 (100%)
Blue81 (31.8%)
Hue90°
Saturation (HSL)100%
Lightness65.88%
Dominant channelGreen
Hex per channelR A8 · G FF · B 51

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Every value on this page was computed from “a8ff51” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.