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Recognised as Colour

#66FF6A

  • #66FF6A
  • Green
  • Light
  • Nearest: Spring green

#66FF6A is a green with RGB values 102, 255, 106 and HSL 122°, 100%, 70%. It is a light colour, so black text on it reaches 16.1:1 contrast (AAA for normal text). The nearest named colour is Spring green.

Colour values

#66FF6A#66FF6A
HEX#66FF6A
RGBrgb(102, 255, 106)
RGB (0–1)0.4, 1, 0.4157
RGB percentages40%, 100%, 41.6%
HSLhsl(121.6, 100%, 70%)
HSV / HSBhsv(121.6, 60%, 100%)
CMYK60%, 0%, 58.4%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,750,058
CSS custom property--colour: #66FF6A;

Brightness & contrast

Relative luminance0.75385WCAG 2.x, 0 is black and 1 is white
Perceived brightness206.3 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 16.08:1
Contrast with white1.31:1WCAG normal text: Fail
Contrast with black16.08:1WCAG normal text: AAA
Greyscale equivalent#D4D4D4
Inverted#990095

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#FFE95Ano red cones; affects about 1% of men; ΔE 61.4 from the original
Deuteranopia#F1DC76no green cones; the most common form, about 1% of men; ΔE 63.4 from the original
Tritanopia#48F8DFno blue cones; rare, and affects men and women equally; ΔE 62 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.31:1WCAG large text: Fail
Contrast with black, large text16.08:1WCAG large text: AAA

Named colours

Spring green · ΔE 13.8Limegreen · ΔE 17.4Medium spring green · ΔE 25.9Lawn green · ΔE 26.8Chartreuse · ΔE 27.6Pale green · ΔE 28.4
Nearest named CSS colourSpring green (#00FF7F)ΔE 13.84, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF66FB
Analogous#AFFF66, #66FFB6
Triadic#6A66FF, #FF6A66
Split complementary#B666FF, #FF66AF
Tetradic#66AFFF, #FF66FB, #FFB666

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#CCFFCD
Lighter +10%#99FF9C
Darker −10%#33FF38
Darker −20%#00FF07
Darker −30%#00CC05
Darker −40%#009904
More saturated +25%#66FF6A
Less saturated −25%#79EC7C

Channel breakdown

R102
G255
B106
Red102 (40%)
Green255 (100%)
Blue106 (41.6%)
Hue121.57°
Saturation (HSL)100%
Lightness70%
Dominant channelGreen
Hex per channelR 66 · G FF · B 6A

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Every value on this page was computed from “66ff6a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.