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Colour

#66FF7F

  • #66FF7F
  • Green
  • Light
  • Nearest: Spring green

#66FF7F is a green with RGB values 102, 255, 127 and HSL 130°, 100%, 70%. It is a light colour, so black text on it reaches 16.2:1 contrast (AAA for normal text). The nearest named colour is Spring green.

Colour values

#66FF7F#66FF7F
HEX#66FF7F
RGBrgb(102, 255, 127)
RGB (0–1)0.4, 1, 0.498
RGB percentages40%, 100%, 49.8%
HSLhsl(129.8, 100%, 70%)
HSV / HSBhsv(129.8, 60%, 100%)
CMYK60%, 0%, 50.2%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,750,079
CSS custom property--colour: #66FF7F;

Brightness & contrast

Relative luminance0.75877WCAG 2.x, 0 is black and 1 is white
Perceived brightness207.7 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 16.18:1
Contrast with white1.3:1WCAG normal text: Fail
Contrast with black16.18:1WCAG normal text: AAA
Greyscale equivalent#D5D5D5
Inverted#990080

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#FFEA74no red cones; affects about 1% of men; ΔE 59.9 from the original
Deuteranopia#EFDD88no green cones; the most common form, about 1% of men; ΔE 61.1 from the original
Tritanopia#41FAE1no blue cones; rare, and affects men and women equally; ΔE 52.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.3:1WCAG large text: Fail
Contrast with black, large text16.18:1WCAG large text: AAA

Named colours

Spring green · ΔE 11Medium spring green · ΔE 17.3Pale green · ΔE 20.7Limegreen · ΔE 21.3Light green · ΔE 23.4Green yellow · ΔE 35.7
Nearest named CSS colourSpring green (#00FF7F)ΔE 11.01, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF66E6
Analogous#9AFF66, #66FFCB
Triadic#7F66FF, #FF7F66
Split complementary#CB66FF, #FF669A
Tetradic#669AFF, #FF66E6, #FFCB66

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#CCFFD4
Lighter +10%#99FFAA
Darker −10%#33FF54
Darker −20%#00FF2A
Darker −30%#00CC21
Darker −40%#009919
More saturated +25%#66FF7F
Less saturated −25%#79EC8C

Channel breakdown

R102
G255
B127
Red102 (40%)
Green255 (100%)
Blue127 (49.8%)
Hue129.8°
Saturation (HSL)100%
Lightness70%
Dominant channelGreen
Hex per channelR 66 · G FF · B 7F

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Every value on this page was computed from “66ff7f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.