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Colour

#99FF33

  • #99FF33
  • Green
  • Light
  • Nearest: Green yellow

#99FF33 is a green with RGB values 153, 255, 51 and HSL 90°, 100%, 60%. It is a light colour, so black text on it reaches 16.7:1 contrast (AAA for normal text). The nearest named colour is Green yellow.

Colour values

#99FF33#99FF33
HEX#99FF33
HEX (short)#9F3
RGBrgb(153, 255, 51)
RGB (0–1)0.6, 1, 0.2
RGB percentages60%, 100%, 20%
HSLhsl(90, 100%, 60%)
HSV / HSBhsv(90, 80%, 100%)
CMYK40%, 0%, 80%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,092,339
CSS custom property--colour: #99FF33;

Brightness & contrast

Relative luminance0.78531WCAG 2.x, 0 is black and 1 is white
Perceived brightness213.2 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 16.71:1
Contrast with white1.26:1WCAG normal text: Fail
Contrast with black16.71:1WCAG normal text: AAA
Greyscale equivalent#DBDBDB
Inverted#6600CC

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#FFEA00no red cones; affects about 1% of men; ΔE 48.9 from the original
Deuteranopia#FCE24Bno green cones; the most common form, about 1% of men; ΔE 52.5 from the original
Tritanopia#99F5DAno blue cones; rare, and affects men and women equally; ΔE 79.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.26:1WCAG large text: Fail
Contrast with black, large text16.71:1WCAG large text: AAA

Named colours

Green yellow · ΔE 7Lawn green · ΔE 10.5Chartreuse · ΔE 11Limegreen · ΔE 27.2Lime · ΔE 27.6Yellow green · ΔE 28.7
Nearest named CSS colourGreen yellow (#ADFF2F)ΔE 6.97, clearly different but related
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9933FF
Analogous#FFFF33, #33FF33
Triadic#3399FF, #FF3399
Split complementary#3333FF, #FF33FF
Tetradic#33FFFF, #9933FF, #FF3333

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#E6FFCC
Lighter +20%#CCFF99
Lighter +10%#B3FF66
Darker −10%#80FF00
Darker −20%#66CC00
Darker −30%#4D9900
Darker −40%#336600
More saturated +25%#99FF33
Less saturated −25%#99E64C

Channel breakdown

R153
G255
B51
Red153 (60%)
Green255 (100%)
Blue51 (20%)
Hue90°
Saturation (HSL)100%
Lightness60%
Dominant channelGreen
Hex per channelR 99 · G FF · B 33

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Every value on this page was computed from “99ff33” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.