#40FF40#40FF40

#40FF40 is a very light, highly saturated green. Relative luminance 0.730; OKLCH L 87.4% C 0.270 H 142.8°. Best body text is #000000 at 15.60:1 contrast (WCAG AA passes).

Color values

HEX	#40FF40
RGB	rgb(64, 255, 64)
HSL	hsl(120, 100%, 63%)
HSV	hsv(120, 75%, 100%)
CMYK	cmyk(74.9%, 0%, 74.9%, 0%)
CIE-LAB	lab(88.44, -79.25, 72.60)
CIE-LCH	lch(88.44, 107.48, 137.51°)
OKLab	oklab(87.44% -0.2151 0.1631)
OKLCH	oklch(87.44% 0.27 142.8)
XYZ	xyz(38.7973, 72.9756, 16.8905)
Luminance	0.7298 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40FF40 #FF40FF

analogous

#9FFF40 #40FF40 #40FF9F

triadic

#40FF40 #4040FF #FF4040

tetradic

#40FF40 #409FFF #FF40FF #FF9F40

square

#40FF40 #409FFF #FF40FF #FF9F40

split-complementary

#40FF40 #9F40FF #FF409F

monochromatic

#00C500 #03FF03 #40FF40 #7DFF7D #BAFFBA

Accessibility & contrast

On white

1.35

#40FF40 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.60

#40FF40 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40FF40

15.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40FF40	#FFFFFF	#000000	##000000
##40FF40	1.00	1.35	15.60	15.60
#FFFFFF	1.35	1.00	21.00	21.00
#000000	15.60	21.00	1.00	1.00
##000000	15.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE711

Deuteranopia (green-blind)

#F0D856

Tritanopia (blue-blind)

#00F7DB

Achromatopsia (no color)

#DEDEDE

Design tokens & code

CSS

--color: #40ff40;
/* rgb */ color: rgb(64, 255, 64);
/* oklch */ color: oklch(87.4% 0.270 142.8);

Tailwind

colors: {
  custom: {
    50: '#92ff81',
    500: '#40ff40',
    950: '#000000',
  },
}

SCSS

$custom: #40ff40;
$custom-light: #92ff81;
$custom-dark: #000000;

JSON

{
  "hex": "#40ff40",
  "rgb": {
    "r": 64,
    "g": 255,
    "b": 64
  },
  "hsl": {
    "h": 120,
    "s": 100,
    "l": 62.549
  },
  "oklch": {
    "l": 0.87437,
    "c": 0.26998,
    "h": 142.8
  },
  "luminance": 0.7298
}

Semantic roles & 50–950 ramp

primary

#40FF40

secondary

#C122C1

accent

#00E5E6

background

#FCFFFB

surface

#F5FFF2

border

#CFD7CC

text

#0F180B

muted

#80867E

Preview Lab

Preview with #40FF40

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

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