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Recognised as Colour

#40FF8B

  • #40FF8B
  • Green
  • Light
  • Nearest: Spring green

#40FF8B is a green with RGB values 64, 255, 139 and HSL 144°, 100%, 63%. It is a light colour, so black text on it reaches 15.9:1 contrast (AAA for normal text). The nearest named colour is Spring green.

Colour values

#40FF8B#40FF8B
HEX#40FF8B
RGBrgb(64, 255, 139)
RGB (0–1)0.251, 1, 0.5451
RGB percentages25.1%, 100%, 54.5%
HSLhsl(143.6, 100%, 62.5%)
HSV / HSBhsv(143.6, 74.9%, 100%)
CMYK74.9%, 0%, 45.5%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,259,723
CSS custom property--colour: #40FF8B;

Brightness & contrast

Relative luminance0.74474WCAG 2.x, 0 is black and 1 is white
Perceived brightness204 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 15.89:1
Contrast with white1.32:1WCAG normal text: Fail
Contrast with black15.89:1WCAG normal text: AAA
Greyscale equivalent#CECECE
Inverted#BF0074

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#FFE982no red cones; affects about 1% of men; ΔE 66.1 from the original
Deuteranopia#EADA93no green cones; the most common form, about 1% of men; ΔE 66.5 from the original
Tritanopia#00FBE3no blue cones; rare, and affects men and women equally; ΔE 47.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.32:1WCAG large text: Fail
Contrast with black, large text15.89:1WCAG large text: AAA

Named colours

Spring green · ΔE 7.8Medium spring green · ΔE 10Pale green · ΔE 22.8Light green · ΔE 25.2Limegreen · ΔE 25.6Medium seagreen · ΔE 37.4
Nearest named CSS colourSpring green (#00FF7F)ΔE 7.78, clearly different but related
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF40B4
Analogous#54FF40, #40FFEA
Triadic#8B40FF, #FF8B40
Split complementary#EA40FF, #FF4055
Tetradic#4055FF, #FF40B4, #FFEB40

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#D9FFE8
Lighter +20%#A6FFC9
Lighter +10%#73FFAA
Darker −10%#0DFF6C
Darker −20%#00D955
Darker −30%#00A641
Darker −40%#00732D
More saturated +25%#40FF8B
Less saturated −25%#58E790

Channel breakdown

R64
G255
B139
Red64 (25.1%)
Green255 (100%)
Blue139 (54.5%)
Hue143.56°
Saturation (HSL)100%
Lightness62.55%
Dominant channelGreen
Hex per channelR 40 · G FF · B 8B

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Every value on this page was computed from “40ff8b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.