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Recognised as Colour

#51FF2A

  • #51FF2A
  • Green
  • Light
  • Nearest: Lime

#51FF2A is a green with RGB values 81, 255, 42 and HSL 109°, 100%, 58%. It is a light colour, so black text on it reaches 15.7:1 contrast (AAA for normal text). The nearest named colour is Lime.

Colour values

#51FF2A#51FF2A
HEX#51FF2A
RGBrgb(81, 255, 42)
RGB (0–1)0.3176, 1, 0.1647
RGB percentages31.8%, 100%, 16.5%
HSLhsl(109, 100%, 58.2%)
HSV / HSBhsv(109, 83.5%, 100%)
CMYK68.2%, 0%, 83.5%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,373,738
CSS custom property--colour: #51FF2A;

Brightness & contrast

Relative luminance0.73436WCAG 2.x, 0 is black and 1 is white
Perceived brightness200.8 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 15.69:1
Contrast with white1.34:1WCAG normal text: Fail
Contrast with black15.69:1WCAG normal text: AAA
Greyscale equivalent#CBCBCB
Inverted#AE00D5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#FFE700no red cones; affects about 1% of men; ΔE 68.8 from the original
Deuteranopia#F2D948no green cones; the most common form, about 1% of men; ΔE 71.5 from the original
Tritanopia#29F7DAno blue cones; rare, and affects men and women equally; ΔE 82 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.34:1WCAG large text: Fail
Contrast with black, large text15.69:1WCAG large text: AAA

Named colours

Lime · ΔE 9.5Lawn green · ΔE 11.6Chartreuse · ΔE 12Green yellow · ΔE 25.7Limegreen · ΔE 25.9Spring green · ΔE 31.8
Nearest named CSS colourLime (#00FF00)ΔE 9.54, clearly different but related
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D82AFF
Analogous#BCFF2A, #2AFF6D
Triadic#2A51FF, #FF2A51
Split complementary#6E2AFF, #FF2ABB
Tetradic#2ABBFF, #D82AFF, #FF6D2A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F8FFF6
Lighter +30%#CEFFC3
Lighter +20%#A4FF90
Lighter +10%#7BFF5D
Darker −10%#2DF600
Darker −20%#24C300
Darker −30%#1A9000
Darker −40%#115D00
More saturated +25%#51FF2A
Less saturated −25%#62E445

Channel breakdown

R81
G255
B42
Red81 (31.8%)
Green255 (100%)
Blue42 (16.5%)
Hue109.01°
Saturation (HSL)100%
Lightness58.24%
Dominant channelGreen
Hex per channelR 51 · G FF · B 2A

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Every value on this page was computed from “51ff2a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.