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Recognised as Colour

#51A10B

  • #51A10B
  • Green
  • Dark
  • Nearest: Green

#51A10B is a green with RGB values 81, 161, 11 and HSL 92°, 87%, 34%. It is a dark colour, so black text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Green.

Colour values

#51A10B#51A10B
HEX#51A10B
RGBrgb(81, 161, 11)
RGB (0–1)0.3176, 0.6314, 0.0431
RGB percentages31.8%, 63.1%, 4.3%
HSLhsl(92, 87.2%, 33.7%)
HSV / HSBhsv(92, 93.2%, 63.1%)
CMYK49.7%, 0%, 93.2%, 36.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,349,643
CSS custom property--colour: #51A10B;

Brightness & contrast

Relative luminance0.27263WCAG 2.x, 0 is black and 1 is white
Perceived brightness131.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.45:1
Contrast with white3.25:1WCAG normal text: Fail
Contrast with black6.45:1WCAG normal text: AA
Greyscale equivalent#858585
Inverted#AE5EF4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A79300no red cones; affects about 1% of men; ΔE 42.2 from the original
Deuteranopia#9D8C24no green cones; the most common form, about 1% of men; ΔE 42.3 from the original
Tritanopia#4E9B88no 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 text3.25:1WCAG large text: AA
Contrast with black, large text6.45:1WCAG large text: AAA

Named colours

Green · ΔE 16.8Forest green · ΔE 17Yellow green · ΔE 20.8Olivedrab · ΔE 21.6Limegreen · ΔE 24.3Dark green · ΔE 29.2
Nearest named CSS colourGreen (#008000)ΔE 16.77, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5B0BA1
Analogous#9CA10B, #0BA110
Triadic#0B51A1, #A10B51
Split complementary#100BA1, #A10B9C
Tetradic#0B9CA1, #5B0BA1, #A1100B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B8F682
Lighter +30%#9DF352
Lighter +20%#82F022
Lighter +10%#69D10E
Darker −10%#397108
Darker −20%#214204
Darker −30%#091201
Darker −40%#000000
More saturated +25%#50AC00
Less saturated −25%#528B20

Channel breakdown

R81
G161
B11
Red81 (31.8%)
Green161 (63.1%)
Blue11 (4.3%)
Hue92°
Saturation (HSL)87.21%
Lightness33.73%
Dominant channelGreen
Hex per channelR 51 · G A1 · B 0B

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Every value on this page was computed from “51a10b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.