#40B03F#40B03F

#40B03F is a light, vivid green. Relative luminance 0.325; OKLCH L 67.0% C 0.183 H 143.1°. Best body text is #000000 at 7.50:1 contrast (WCAG AA passes).

Color values

HEX	#40B03F
RGB	rgb(64, 176, 63)
HSL	hsl(119, 47%, 47%)
HSV	hsv(119, 64%, 69%)
CMYK	cmyk(63.6%, 0%, 64.2%, 31%)
CIE-LAB	lab(63.75, -53.81, 47.28)
CIE-LCH	lch(63.75, 71.62, 138.70°)
OKLab	oklab(66.96% -0.1462 0.1099)
OKLCH	oklch(66.96% 0.183 143.1)
XYZ	xyz(18.5358, 32.4977, 9.9975)
Luminance	0.3250 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B03F #AF3FB0

analogous

#79B03F #40B03F #3FB077

triadic

#40B03F #3F40B0 #B03F40

tetradic

#40B03F #3F79B0 #AF3FB0 #B0773F

square

#40B03F #3F79B0 #AF3FB0 #B0773F

split-complementary

#40B03F #773FB0 #B03F79

monochromatic

#1F561F #30832F #40B03F #65C865 #92D892

Accessibility & contrast

On white

2.80

#40B03F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.50

#40B03F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B03F

7.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B03F	#FFFFFF	#000000	##000000
##40B03F	1.00	2.80	7.50	7.50
#FFFFFF	2.80	1.00	21.00	21.00
#000000	7.50	21.00	1.00	1.00
##000000	7.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B4A031

Deuteranopia (green-blind)

#A69749

Tritanopia (blue-blind)

#29AB98

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #40b03f;
/* rgb */ color: rgb(64, 176, 63);
/* oklch */ color: oklch(67.0% 0.183 143.1);

Tailwind

colors: {
  custom: {
    50: '#82c979',
    500: '#40b03f',
    950: '#000000',
  },
}

SCSS

$custom: #40b03f;
$custom-light: #82c979;
$custom-dark: #000000;

JSON

{
  "hex": "#40b03f",
  "rgb": {
    "r": 64,
    "g": 176,
    "b": 63
  },
  "hsl": {
    "h": 119.469,
    "s": 47.28,
    "l": 46.863
  },
  "oklch": {
    "l": 0.66963,
    "c": 0.18289,
    "h": 143.1
  },
  "luminance": 0.325
}

Semantic roles & 50–950 ramp

primary

#40B03F

secondary

#C388C3

accent

#51D7D6

background

#F8FCF7

surface

#F0F8EE

border

#CBD1C9

text

#0C1309

muted

#7D827B

Preview Lab

Preview with #40B03F

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

Preview Lab → · Contrast checker → · Palette generator →