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Recognised as Colour

#18FF57

  • #18FF57
  • Green
  • Light
  • Nearest: Spring green

#18FF57 is a green with RGB values 24, 255, 87 and HSL 136°, 100%, 55%. It is a light colour, so black text on it reaches 15.5:1 contrast (AAA for normal text). The nearest named colour is Spring green.

Colour values

#18FF57#18FF57
HEX#18FF57
RGBrgb(24, 255, 87)
RGB (0–1)0.0941, 1, 0.3412
RGB percentages9.4%, 100%, 34.1%
HSLhsl(136.4, 100%, 54.7%)
HSV / HSBhsv(136.4, 90.6%, 100%)
CMYK90.6%, 0%, 65.9%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,638,231
CSS custom property--colour: #18FF57;

Brightness & contrast

Relative luminance0.72402WCAG 2.x, 0 is black and 1 is white
Perceived brightness198 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 15.48:1
Contrast with white1.36:1WCAG normal text: Fail
Contrast with black15.48:1WCAG normal text: AAA
Greyscale equivalent#C2C2C2
Inverted#E700A8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#FFE741no red cones; affects about 1% of men; ΔE 73.9 from the original
Deuteranopia#ECD767no green cones; the most common form, about 1% of men; ΔE 75.1 from the original
Tritanopia#00F9DDno blue cones; rare, and affects men and women equally; ΔE 69.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.36:1WCAG large text: Fail
Contrast with black, large text15.48:1WCAG large text: AAA

Named colours

Spring green · ΔE 17.5Lime · ΔE 19.8Limegreen · ΔE 21.1Lawn green · ΔE 24.8Chartreuse · ΔE 25.4Medium spring green · ΔE 33.3
Nearest named CSS colourSpring green (#00FF7F)ΔE 17.53, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF18C0
Analogous#4CFF18, #18FFCB
Triadic#5718FF, #FF5718
Split complementary#CA18FF, #FF184D
Tetradic#184CFF, #FF18C0, #FFCB18

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E4FFEB
Lighter +30%#B1FFC6
Lighter +20%#7EFFA1
Lighter +10%#4BFF7C
Darker −10%#00E43E
Darker −20%#00B130
Darker −30%#007E22
Darker −40%#004B14
More saturated +25%#18FF57
Less saturated −25%#35E264

Channel breakdown

R24
G255
B87
Red24 (9.4%)
Green255 (100%)
Blue87 (34.1%)
Hue136.36°
Saturation (HSL)100%
Lightness54.71%
Dominant channelGreen
Hex per channelR 18 · G FF · B 57

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Every value on this page was computed from “18ff57” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.