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Recognised as Colour

#66D378

  • #66D378
  • Green
  • Light
  • Nearest: Light green

#66D378 is a green with RGB values 102, 211, 120 and HSL 130°, 55%, 61%. It is a light colour, so black text on it reaches 11.2:1 contrast (AAA for normal text). The nearest named colour is Light green.

Colour values

#66D378#66D378
HEX#66D378
RGBrgb(102, 211, 120)
RGB (0–1)0.4, 0.8275, 0.4706
RGB percentages40%, 82.7%, 47.1%
HSLhsl(129.9, 55.3%, 61.4%)
HSV / HSBhsv(129.9, 51.7%, 82.7%)
CMYK51.7%, 0%, 43.1%, 17.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,738,808
CSS custom property--colour: #66D378;

Brightness & contrast

Relative luminance0.50769WCAG 2.x, 0 is black and 1 is white
Perceived brightness175.7 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 11.15:1
Contrast with white1.88:1WCAG normal text: Fail
Contrast with black11.15:1WCAG normal text: AAA
Greyscale equivalent#B5B5B5
Inverted#992C87

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#D5C371no red cones; affects about 1% of men; ΔE 46.5 from the original
Deuteranopia#C6B97Eno green cones; the most common form, about 1% of men; ΔE 46.6 from the original
Tritanopia#51CFBDno blue cones; rare, and affects men and women equally; ΔE 38.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.88:1WCAG large text: Fail
Contrast with black, large text11.15:1WCAG large text: AAA

Named colours

Light green · ΔE 10.9Pale green · ΔE 14.7Medium seagreen · ΔE 16.2Medium spring green · ΔE 23.2Forest green · ΔE 27.6Medium aquamarine · ΔE 29.9
Nearest named CSS colourLight green (#90EE90)ΔE 10.9, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D366C1
Analogous#8BD366, #66D3AE
Triadic#7866D3, #D37866
Split complementary#AE66D3, #D3668B
Tetradic#668BD3, #D366C1, #D3AE66

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#DDF5E1
Lighter +20%#B5EABE
Lighter +10%#8EDE9B
Darker −10%#3EC855
Darker −20%#2FA442
Darker −30%#247C32
Darker −40%#185522
More saturated +25%#4DEC68
Less saturated −25%#7FBA88

Channel breakdown

R102
G211
B120
Red102 (40%)
Green211 (82.7%)
Blue120 (47.1%)
Hue129.91°
Saturation (HSL)55.33%
Lightness61.37%
Dominant channelGreen
Hex per channelR 66 · G D3 · B 78

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Every value on this page was computed from “66d378” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.