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Recognised as Colour

#81BB66

  • #81BB66
  • Green
  • Dark
  • Nearest: Medium seagreen

#81BB66 is a green with RGB values 129, 187, 102 and HSL 101°, 38%, 57%. It is a dark colour, so black text on it reaches 9.2:1 contrast (AAA for normal text). The nearest named colour is Medium seagreen.

Colour values

#81BB66#81BB66
HEX#81BB66
RGBrgb(129, 187, 102)
RGB (0–1)0.5059, 0.7333, 0.4
RGB percentages50.6%, 73.3%, 40%
HSLhsl(100.9, 38.5%, 56.7%)
HSV / HSBhsv(100.9, 45.5%, 73.3%)
CMYK31%, 0%, 45.5%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,502,118
CSS custom property--colour: #81BB66;

Brightness & contrast

Relative luminance0.41167WCAG 2.x, 0 is black and 1 is white
Perceived brightness163.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.23:1
Contrast with white2.27:1WCAG normal text: Fail
Contrast with black9.23:1WCAG normal text: AAA
Greyscale equivalent#A9A9A9
Inverted#7E4499

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#C0AF5Fno red cones; affects about 1% of men; ΔE 30.5 from the original
Deuteranopia#B8AA6Bno green cones; the most common form, about 1% of men; ΔE 30.6 from the original
Tritanopia#7FB6A7no blue cones; rare, and affects men and women equally; ΔE 37.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.27:1WCAG large text: Fail
Contrast with black, large text9.23:1WCAG large text: AAA

Named colours

Medium seagreen · ΔE 19.4Light green · ΔE 20.1Olivedrab · ΔE 21.1Dark seagreen · ΔE 21.9Pale green · ΔE 24.7Sea green · ΔE 25.9
Nearest named CSS colourMedium seagreen (#3CB371)ΔE 19.42, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A066BB
Analogous#ABBB66, #66BB75
Triadic#6681BB, #BB6681
Split complementary#7666BB, #BB66AB
Tetradic#66ABBB, #A066BB, #BB7666

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F5FAF3
Lighter +30%#D8EAD0
Lighter +20%#BBDAAD
Lighter +10%#9ECB89
Darker −10%#66A549
Darker −20%#50813A
Darker −30%#3A5E2A
Darker −40%#253B1A
More saturated +25%#77D74A
Less saturated −25%#8B9F82

Channel breakdown

R129
G187
B102
Red129 (50.6%)
Green187 (73.3%)
Blue102 (40%)
Hue100.94°
Saturation (HSL)38.46%
Lightness56.67%
Dominant channelGreen
Hex per channelR 81 · G BB · B 66

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Every value on this page was computed from “81bb66” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.