#40D66B#40D66B

#40D66B is a light, vivid green. Relative luminance 0.502; OKLCH L 77.4% C 0.194 H 148.8°. Best body text is #000000 at 11.05:1 contrast (WCAG AA passes).

Color values

HEX	#40D66B
RGB	rgb(64, 214, 107)
HSL	hsl(137, 65%, 55%)
HSV	hsv(137, 70%, 84%)
CMYK	cmyk(70.1%, 0%, 50%, 16.1%)
CIE-LAB	lab(76.22, -61.61, 41.48)
CIE-LCH	lch(76.22, 74.27, 146.05°)
OKLab	oklab(77.43% -0.1659 0.1005)
OKLCH	oklch(77.43% 0.194 148.8)
XYZ	xyz(28.8125, 50.2415, 22.0862)
Luminance	0.5024 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40D66B #D640AB

analogous

#60D640 #40D66B #40D6B6

triadic

#40D66B #6B40D6 #D66B40

tetradic

#40D66B #4060D6 #D640AB #D6B640

square

#40D66B #4060D6 #D640AB #D6B640

split-complementary

#40D66B #B640D6 #D64060

monochromatic

#1B8038 #26B24E #40D66B #72E192 #A5ECB9

Accessibility & contrast

On white

1.90

#40D66B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.05

#40D66B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40D66B

11.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40D66B	#FFFFFF	#000000	##000000
##40D66B	1.00	1.90	11.05	11.05
#FFFFFF	1.90	1.00	21.00	21.00
#000000	11.05	21.00	1.00	1.00
##000000	11.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D8C462

Deuteranopia (green-blind)

#C6B773

Tritanopia (blue-blind)

#00D2BD

Achromatopsia (no color)

#BCBCBC

Design tokens & code

CSS

--color: #40d66b;
/* rgb */ color: rgb(64, 214, 107);
/* oklch */ color: oklch(77.4% 0.194 148.8);

Tailwind

colors: {
  custom: {
    50: '#88e497',
    500: '#40d66b',
    950: '#000000',
  },
}

SCSS

$custom: #40d66b;
$custom-light: #88e497;
$custom-dark: #000000;

JSON

{
  "hex": "#40d66b",
  "rgb": {
    "r": 64,
    "g": 214,
    "b": 107
  },
  "hsl": {
    "h": 137.2,
    "s": 64.655,
    "l": 54.51
  },
  "oklch": {
    "l": 0.77426,
    "c": 0.19394,
    "h": 148.8
  },
  "luminance": 0.50245
}

Semantic roles & 50–950 ramp

primary

#40D66B

secondary

#87336F

accent

#40B8E8

background

#FCFEFC

surface

#F4FCF5

border

#CED5CF

text

#0D160E

muted

#7F847F

Preview Lab

Preview with #40D66B

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

Preview Lab → · Contrast checker → · Palette generator →