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Recognised as Colour

#66C987

  • #66C987
  • Green
  • Dark
  • Nearest: Medium seagreen

#66C987 is a green with RGB values 102, 201, 135 and HSL 140°, 48%, 59%. It is a dark colour, so black text on it reaches 10.3:1 contrast (AAA for normal text). The nearest named colour is Medium seagreen.

Colour values

#66C987#66C987
HEX#66C987
RGBrgb(102, 201, 135)
RGB (0–1)0.4, 0.7882, 0.5294
RGB percentages40%, 78.8%, 52.9%
HSLhsl(140, 47.8%, 59.4%)
HSV / HSBhsv(140, 49.3%, 78.8%)
CMYK49.3%, 0%, 32.8%, 21.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,736,263
CSS custom property--colour: #66C987;

Brightness & contrast

Relative luminance0.46347WCAG 2.x, 0 is black and 1 is white
Perceived brightness170 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 10.27:1
Contrast with white2.04:1WCAG normal text: Fail
Contrast with black10.27:1WCAG normal text: AAA
Greyscale equivalent#AFAFAF
Inverted#993678

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#C9BB83no red cones; affects about 1% of men; ΔE 40.9 from the original
Deuteranopia#BBB18Bno green cones; the most common form, about 1% of men; ΔE 41.4 from the original
Tritanopia#4FC7B8no blue cones; rare, and affects men and women equally; ΔE 27.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.04:1WCAG large text: Fail
Contrast with black, large text10.27:1WCAG large text: AAA

Named colours

Medium seagreen · ΔE 9.6Medium aquamarine · ΔE 17Light green · ΔE 18.2Dark seagreen · ΔE 20.9Pale green · ΔE 22.6Sea green · ΔE 23
Nearest named CSS colourMedium seagreen (#3CB371)ΔE 9.61, clearly different but related
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C966A8
Analogous#77C966, #66C9B9
Triadic#8766C9, #C98766
Split complementary#B866C9, #C96677
Tetradic#6676C9, #C966A8, #C9B966

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FDFEFD
Lighter +30%#D7F1E0
Lighter +20%#B1E4C2
Lighter +10%#8CD6A5
Darker −10%#42BA6A
Darker −20%#349554
Darker −30%#276F3F
Darker −40%#1A492A
More saturated +25%#4CE37E
Less saturated −25%#80AF90

Channel breakdown

R102
G201
B135
Red102 (40%)
Green201 (78.8%)
Blue135 (52.9%)
Hue140°
Saturation (HSL)47.83%
Lightness59.41%
Dominant channelGreen
Hex per channelR 66 · G C9 · B 87

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Every value on this page was computed from “66c987” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.