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Recognised as Colour

#99FF66

  • #99FF66
  • Green
  • Light
  • Nearest: Green yellow

#99FF66 is a green with RGB values 153, 255, 102 and HSL 100°, 100%, 70%. It is a light colour, so black text on it reaches 16.9:1 contrast (AAA for normal text). The nearest named colour is Green yellow.

Colour values

#99FF66#99FF66
HEX#99FF66
HEX (short)#9F6
RGBrgb(153, 255, 102)
RGB (0–1)0.6, 1, 0.4
RGB percentages60%, 100%, 40%
HSLhsl(100, 100%, 70%)
HSV / HSBhsv(100, 60%, 100%)
CMYK40%, 0%, 60%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,092,390
CSS custom property--colour: #99FF66;

Brightness & contrast

Relative luminance0.79252WCAG 2.x, 0 is black and 1 is white
Perceived brightness215.3 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 16.85:1
Contrast with white1.25:1WCAG normal text: Fail
Contrast with black16.85:1WCAG normal text: AAA
Greyscale equivalent#DEDEDE
Inverted#660099

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#FFEC55no red cones; affects about 1% of men; ΔE 46.5 from the original
Deuteranopia#F9E372no green cones; the most common form, about 1% of men; ΔE 49.7 from the original
Tritanopia#95F6DEno blue cones; rare, and affects men and women equally; ΔE 63.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.25:1WCAG large text: Fail
Contrast with black, large text16.85:1WCAG large text: AAA

Named colours

Green yellow · ΔE 19.8Limegreen · ΔE 22Yellow green · ΔE 23.4Pale green · ΔE 24.9Lawn green · ΔE 25.8Spring green · ΔE 26.4
Nearest named CSS colourGreen yellow (#ADFF2F)ΔE 19.78, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CC66FF
Analogous#E5FF66, #66FF7F
Triadic#6699FF, #FF6699
Split complementary#8066FF, #FF66E5
Tetradic#66E6FF, #CC66FF, #FF8066

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#DDFFCC
Lighter +10%#BBFF99
Darker −10%#77FF33
Darker −20%#55FF00
Darker −30%#44CC00
Darker −40%#339900
More saturated +25%#99FF66
Less saturated −25%#9FEC79

Channel breakdown

R153
G255
B102
Red153 (60%)
Green255 (100%)
Blue102 (40%)
Hue100°
Saturation (HSL)100%
Lightness70%
Dominant channelGreen
Hex per channelR 99 · G FF · B 66

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Every value on this page was computed from “99ff66” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.