#3FFF40#3FFF40

#3FFF40 is a very light, highly saturated green. Relative luminance 0.729; OKLCH L 87.4% C 0.270 H 142.9°. Best body text is #000000 at 15.59:1 contrast (WCAG AA passes).

Color values

HEX	#3FFF40
RGB	rgb(63, 255, 64)
HSL	hsl(120, 100%, 62%)
HSV	hsv(120, 75%, 100%)
CMYK	cmyk(75.3%, 0%, 74.9%, 0%)
CIE-LAB	lab(88.42, -79.39, 72.58)
CIE-LCH	lch(88.42, 107.57, 137.57°)
OKLab	oklab(87.42% -0.2155 0.1631)
OKLCH	oklch(87.42% 0.27 142.9)
XYZ	xyz(38.7329, 72.9424, 16.8875)
Luminance	0.7295 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3FFF40 #FF3FFE

analogous

#9EFF3F #3FFF40 #3FFFA0

triadic

#3FFF40 #403FFF #FF403F

tetradic

#3FFF40 #3F9EFF #FF3FFE #FFA03F

square

#3FFF40 #3F9EFF #FF3FFE #FFA03F

split-complementary

#3FFF40 #A03FFF #FF3F9E

monochromatic

#00C401 #02FF03 #3FFF40 #7CFF7D #B9FFBA

Accessibility & contrast

On white

1.35

#3FFF40 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.59

#3FFF40 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #3FFF40

15.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3FFF40	#FFFFFF	#000000	##000000
##3FFF40	1.00	1.35	15.59	15.59
#FFFFFF	1.35	1.00	21.00	21.00
#000000	15.59	21.00	1.00	1.00
##000000	15.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE711

Deuteranopia (green-blind)

#EFD856

Tritanopia (blue-blind)

#00F8DB

Achromatopsia (no color)

#DEDEDE

Design tokens & code

CSS

--color: #3fff40;
/* rgb */ color: rgb(63, 255, 64);
/* oklch */ color: oklch(87.4% 0.270 142.9);

Tailwind

colors: {
  custom: {
    50: '#92ff81',
    500: '#3fff40',
    950: '#000000',
  },
}

SCSS

$custom: #3fff40;
$custom-light: #92ff81;
$custom-dark: #000000;

JSON

{
  "hex": "#3fff40",
  "rgb": {
    "r": 63,
    "g": 255,
    "b": 64
  },
  "hsl": {
    "h": 120.313,
    "s": 100,
    "l": 62.353
  },
  "oklch": {
    "l": 0.87419,
    "c": 0.27022,
    "h": 142.9
  },
  "luminance": 0.72947
}

Semantic roles & 50–950 ramp

primary

#3FFF40

secondary

#C022BF

accent

#00E4E6

background

#FCFFFB

surface

#F5FFF2

border

#CFD7CC

text

#0F180B

muted

#80867E

Preview Lab

Preview with #3FFF40

Body copy rendered with the generated semantic roles for this colour.

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