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Recognised as Colour

#51AD1E

  • #51AD1E
  • Green
  • Dark
  • Nearest: Forest green

#51AD1E is a green with RGB values 81, 173, 30 and HSL 99°, 70%, 40%. It is a dark colour, so black text on it reaches 7.3:1 contrast (AAA for normal text). The nearest named colour is Forest green.

Colour values

#51AD1E#51AD1E
HEX#51AD1E
RGBrgb(81, 173, 30)
RGB (0–1)0.3176, 0.6784, 0.1176
RGB percentages31.8%, 67.8%, 11.8%
HSLhsl(98.6, 70.4%, 39.8%)
HSV / HSBhsv(98.6, 82.7%, 67.8%)
CMYK53.2%, 0%, 82.7%, 32.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,352,734
CSS custom property--colour: #51AD1E;

Brightness & contrast

Relative luminance0.3173WCAG 2.x, 0 is black and 1 is white
Perceived brightness140.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.35:1
Contrast with white2.86:1WCAG normal text: Fail
Contrast with black7.35:1WCAG normal text: AAA
Greyscale equivalent#8F8F8F
Inverted#AE52E1

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#B39D00no red cones; affects about 1% of men; ΔE 46.8 from the original
Deuteranopia#A79630no green cones; the most common form, about 1% of men; ΔE 45.8 from the original
Tritanopia#4AA793no blue cones; rare, and affects men and women equally; ΔE 59.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.86:1WCAG large text: Fail
Contrast with black, large text7.35:1WCAG large text: AAA

Named colours

Forest green · ΔE 18.6Limegreen · ΔE 19Green · ΔE 19.1Yellow green · ΔE 20.2Olivedrab · ΔE 25.8Light green · ΔE 32.3
Nearest named CSS colourForest green (#228B22)ΔE 18.64, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7A1EAD
Analogous#98AD1E, #1EAD33
Triadic#1E51AD, #AD1E51
Split complementary#331EAD, #AD1E99
Tetradic#1E98AD, #7A1EAD, #AD331E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C1F0A7
Lighter +30%#A2E87C
Lighter +20%#84E150
Lighter +10%#65D826
Darker −10%#3D8216
Darker −20%#28560F
Darker −30%#142B07
Darker −40%#000000
More saturated +25%#4AC605
Less saturated −25%#589437

Channel breakdown

R81
G173
B30
Red81 (31.8%)
Green173 (67.8%)
Blue30 (11.8%)
Hue98.6°
Saturation (HSL)70.44%
Lightness39.8%
Dominant channelGreen
Hex per channelR 51 · G AD · B 1E

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Every value on this page was computed from “51ad1e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.