#40FF99#40FF99

#40FF99 is a very light, highly saturated green. Relative luminance 0.749; OKLCH L 88.5% C 0.205 H 154.3°. Best body text is #000000 at 15.98:1 contrast (WCAG AA passes).

Color values

HEX	#40FF99
RGB	rgb(64, 255, 153)
HSL	hsl(148, 100%, 63%)
HSV	hsv(148, 75%, 100%)
CMYK	cmyk(74.9%, 0%, 40%, 0%)
CIE-LAB	lab(89.35, -68.41, 35.71)
CIE-LCH	lch(89.35, 77.17, 152.44°)
OKLab	oklab(88.49% -0.1843 0.0888)
OKLCH	oklch(88.49% 0.205 154.3)
XYZ	xyz(43.6200, 74.9047, 42.2900)
Luminance	0.7491 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40FF99 #FF40A6

analogous

#47FF40 #40FF99 #40FFF8

triadic

#40FF99 #9940FF #FF9940

tetradic

#40FF99 #4047FF #FF40A6 #FFF840

square

#40FF99 #4047FF #FF40A6 #FFF840

split-complementary

#40FF99 #F840FF #FF4047

monochromatic

#00C55C #03FF78 #40FF99 #7DFFBA #BAFFDA

Accessibility & contrast

On white

1.31

#40FF99 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.98

#40FF99 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40FF99

15.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40FF99	#FFFFFF	#000000	##000000
##40FF99	1.00	1.31	15.98	15.98
#FFFFFF	1.31	1.00	21.00	21.00
#000000	15.98	21.00	1.00	1.00
##000000	15.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FEEA92

Deuteranopia (green-blind)

#E8DAA0

Tritanopia (blue-blind)

#00FCE6

Achromatopsia (no color)

#E0E0E0

Design tokens & code

CSS

--color: #40ff99;
/* rgb */ color: rgb(64, 255, 153);
/* oklch */ color: oklch(88.5% 0.205 154.3);

Tailwind

colors: {
  custom: {
    50: '#8fffb8',
    500: '#40ff99',
    950: '#000000',
  },
}

SCSS

$custom: #40ff99;
$custom-light: #8fffb8;
$custom-dark: #000000;

JSON

{
  "hex": "#40ff99",
  "rgb": {
    "r": 64,
    "g": 255,
    "b": 153
  },
  "hsl": {
    "h": 147.958,
    "s": 100,
    "l": 62.549
  },
  "oklch": {
    "l": 0.88488,
    "c": 0.20457,
    "h": 154.3
  },
  "luminance": 0.7491
}

Semantic roles & 50–950 ramp

primary

#40FF99

secondary

#C12277

accent

#007BE6

background

#FCFFFD

surface

#F5FFF8

border

#CFD7D1

text

#0E1811

muted

#7F8681

Preview Lab

Preview with #40FF99

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

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