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Colour

#91FF51

  • #91FF51
  • Green
  • Light
  • Nearest: Green yellow

#91FF51 is a green with RGB values 145, 255, 81 and HSL 98°, 100%, 66%. It is a light colour, so black text on it reaches 16.6:1 contrast (AAA for normal text). The nearest named colour is Green yellow.

Colour values

#91FF51#91FF51
HEX#91FF51
RGBrgb(145, 255, 81)
RGB (0–1)0.5686, 1, 0.3176
RGB percentages56.9%, 100%, 31.8%
HSLhsl(97.9, 100%, 65.9%)
HSV / HSBhsv(97.9, 68.2%, 100%)
CMYK43.1%, 0%, 68.2%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer9,568,081
CSS custom property--colour: #91FF51;

Brightness & contrast

Relative luminance0.78134WCAG 2.x, 0 is black and 1 is white
Perceived brightness212.6 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 16.63:1
Contrast with white1.26:1WCAG normal text: Fail
Contrast with black16.63:1WCAG normal text: AAA
Greyscale equivalent#DBDBDB
Inverted#6E00AE

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#FFEB36no red cones; affects about 1% of men; ΔE 50.4 from the original
Deuteranopia#F9E161no green cones; the most common form, about 1% of men; ΔE 53.7 from the original
Tritanopia#8CF6DCno blue cones; rare, and affects men and women equally; ΔE 70.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.26:1WCAG large text: Fail
Contrast with black, large text16.63:1WCAG large text: AAA

Named colours

Green yellow · ΔE 14Lawn green · ΔE 17.1Chartreuse · ΔE 17.9Limegreen · ΔE 21.4Yellow green · ΔE 26.3Spring green · ΔE 28.7
Nearest named CSS colourGreen yellow (#ADFF2F)ΔE 14.01, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BF51FF
Analogous#E8FF51, #51FF68
Triadic#5191FF, #FF5191
Split complementary#6851FF, #FF51E8
Tetradic#51E8FF, #BF51FF, #FF6851

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#F2FFEA
Lighter +20%#D1FFB7
Lighter +10%#B1FF84
Darker −10%#71FF1E
Darker −20%#56EA00
Darker −30%#43B700
Darker −40%#318400
More saturated +25%#91FF51
Less saturated −25%#97E967

Channel breakdown

R145
G255
B81
Red145 (56.9%)
Green255 (100%)
Blue81 (31.8%)
Hue97.93°
Saturation (HSL)100%
Lightness65.88%
Dominant channelGreen
Hex per channelR 91 · G FF · B 51

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Every value on this page was computed from “91ff51” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.