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Colour

#66FF38

  • #66FF38
  • Green
  • Light
  • Nearest: Lawn green

#66FF38 is a green with RGB values 102, 255, 56 and HSL 106°, 100%, 61%. It is a light colour, so black text on it reaches 15.9:1 contrast (AAA for normal text). The nearest named colour is Lawn green.

Colour values

#66FF38#66FF38
HEX#66FF38
RGBrgb(102, 255, 56)
RGB (0–1)0.4, 1, 0.2196
RGB percentages40%, 100%, 22%
HSLhsl(106.1, 100%, 61%)
HSV / HSBhsv(106.1, 78%, 100%)
CMYK60%, 0%, 78%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,750,008
CSS custom property--colour: #66FF38;

Brightness & contrast

Relative luminance0.7463WCAG 2.x, 0 is black and 1 is white
Perceived brightness204.1 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 15.93:1
Contrast with white1.32:1WCAG normal text: Fail
Contrast with black15.93:1WCAG normal text: AAA
Greyscale equivalent#D0D0D0
Inverted#9900C7

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#FFE800no red cones; affects about 1% of men; ΔE 64 from the original
Deuteranopia#F3DB50no green cones; the most common form, about 1% of men; ΔE 66.4 from the original
Tritanopia#51F7DAno blue cones; rare, and affects men and women equally; ΔE 78.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.32:1WCAG large text: Fail
Contrast with black, large text15.93:1WCAG large text: AAA

Named colours

Lawn green · ΔE 10.2Chartreuse · ΔE 10.9Lime · ΔE 15.2Green yellow · ΔE 21.4Limegreen · ΔE 22.8Spring green · ΔE 29.3
Nearest named CSS colourLawn green (#7CFC00)ΔE 10.24, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D138FF
Analogous#CAFF38, #38FF6D
Triadic#3866FF, #FF3866
Split complementary#6D38FF, #FF38CA
Tetradic#38CAFF, #D138FF, #FF6E38

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#DCFFD1
Lighter +20%#B4FF9E
Lighter +10%#8DFF6B
Darker −10%#3FFF05
Darker −20%#30D100
Darker −30%#259E00
Darker −40%#196B00
More saturated +25%#66FF38
Less saturated −25%#73E651

Channel breakdown

R102
G255
B56
Red102 (40%)
Green255 (100%)
Blue56 (22%)
Hue106.13°
Saturation (HSL)100%
Lightness60.98%
Dominant channelGreen
Hex per channelR 66 · G FF · B 38

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Every value on this page was computed from “66ff38” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.