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Recognised as Colour

#66E490

  • #66E490
  • Green
  • Light
  • Nearest: Light green

#66E490 is a green with RGB values 102, 228, 144 and HSL 140°, 70%, 65%. It is a light colour, so black text on it reaches 13.1:1 contrast (AAA for normal text). The nearest named colour is Light green.

Colour values

#66E490#66E490
HEX#66E490
RGBrgb(102, 228, 144)
RGB (0–1)0.4, 0.8941, 0.5647
RGB percentages40%, 89.4%, 56.5%
HSLhsl(140, 70%, 64.7%)
HSV / HSBhsv(140, 55.3%, 89.4%)
CMYK55.3%, 0%, 36.8%, 10.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,743,184
CSS custom property--colour: #66E490;

Brightness & contrast

Relative luminance0.60325WCAG 2.x, 0 is black and 1 is white
Perceived brightness189.7 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 13.07:1
Contrast with white1.61:1WCAG normal text: Fail
Contrast with black13.07:1WCAG normal text: AAA
Greyscale equivalent#C3C3C3
Inverted#991B6F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#E5D38Ano red cones; affects about 1% of men; ΔE 50 from the original
Deuteranopia#D3C795no green cones; the most common form, about 1% of men; ΔE 50.1 from the original
Tritanopia#44E1CFno blue cones; rare, and affects men and women equally; ΔE 34.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.61:1WCAG large text: Fail
Contrast with black, large text13.07:1WCAG large text: AAA

Named colours

Light green · ΔE 10.4Pale green · ΔE 12.8Medium spring green · ΔE 18.3Medium seagreen · ΔE 18.6Aquamarine · ΔE 24.5Medium aquamarine · ΔE 27.7
Nearest named CSS colourLight green (#90EE90)ΔE 10.42, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#E466BA
Analogous#7BE466, #66E4CF
Triadic#9066E4, #E49066
Split complementary#CF66E4, #E4667B
Tetradic#667BE4, #E466BA, #E4CF66

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#E8FBEE
Lighter +20%#BDF3CF
Lighter +10%#91ECAF
Darker −10%#3BDC71
Darker −20%#22C257
Darker −30%#1B9644
Darker −40%#136B30
More saturated +25%#4FFB89
Less saturated −25%#7CCE98

Channel breakdown

R102
G228
B144
Red102 (40%)
Green228 (89.4%)
Blue144 (56.5%)
Hue140°
Saturation (HSL)70%
Lightness64.71%
Dominant channelGreen
Hex per channelR 66 · G E4 · B 90

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Every value on this page was computed from “66e490” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.