#40D556#40D556

#40D556 is a light, highly saturated green. Relative luminance 0.493; OKLCH L 76.9% C 0.210 H 145.4°. Best body text is #000000 at 10.87:1 contrast (WCAG AA passes).

Color values

HEX	#40D556
RGB	rgb(64, 213, 86)
HSL	hsl(129, 64%, 54%)
HSV	hsv(129, 70%, 84%)
CMYK	cmyk(70%, 0%, 59.6%, 16.5%)
CIE-LAB	lab(75.67, -64.07, 50.62)
CIE-LCH	lch(75.67, 81.65, 141.69°)
OKLab	oklab(76.89% -0.173 0.1192)
OKLCH	oklch(76.89% 0.21 145.4)
XYZ	xyz(27.5864, 49.3473, 16.8734)
Luminance	0.4935 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40D556 #D540BF

analogous

#75D540 #40D556 #40D5A1

triadic

#40D556 #5640D5 #D55640

tetradic

#40D556 #4075D5 #D540BF #D5A140

square

#40D556 #4075D5 #D540BF #D5A140

split-complementary

#40D556 #A140D5 #D54075

monochromatic

#1C7F2A #27B13B #40D556 #72E082 #A4EBAF

Accessibility & contrast

On white

1.93

#40D556 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.87

#40D556 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40D556

10.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40D556	#FFFFFF	#000000	##000000
##40D556	1.00	1.93	10.87	10.87
#FFFFFF	1.93	1.00	21.00	21.00
#000000	10.87	21.00	1.00	1.00
##000000	10.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D8C248

Deuteranopia (green-blind)

#C7B660

Tritanopia (blue-blind)

#00D0BA

Achromatopsia (no color)

#BABABA

Design tokens & code

CSS

--color: #40d556;
/* rgb */ color: rgb(64, 213, 86);
/* oklch */ color: oklch(76.9% 0.210 145.4);

Tailwind

colors: {
  custom: {
    50: '#89e38a',
    500: '#40d556',
    950: '#000000',
  },
}

SCSS

$custom: #40d556;
$custom-light: #89e38a;
$custom-dark: #000000;

JSON

{
  "hex": "#40d556",
  "rgb": {
    "r": 64,
    "g": 213,
    "b": 86
  },
  "hsl": {
    "h": 128.859,
    "s": 63.948,
    "l": 54.314
  },
  "oklch": {
    "l": 0.76893,
    "c": 0.21009,
    "h": 145.4
  },
  "luminance": 0.4935
}

Semantic roles & 50–950 ramp

primary

#40D556

secondary

#D899CF

accent

#41CEE7

background

#F9FEF8

surface

#F1FCF0

border

#CBD5CB

text

#0D160C

muted

#7E847D

Preview Lab

Preview with #40D556

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

Preview Lab → · Contrast checker → · Palette generator →