#40D557#40D557

#40D557 is a light, highly saturated green. Relative luminance 0.494; OKLCH L 76.9% C 0.209 H 145.6°. Best body text is #000000 at 10.87:1 contrast (WCAG AA passes).

Color values

HEX	#40D557
RGB	rgb(64, 213, 87)
HSL	hsl(129, 64%, 54%)
HSV	hsv(129, 70%, 84%)
CMYK	cmyk(70%, 0%, 59.2%, 16.5%)
CIE-LAB	lab(75.68, -63.95, 50.19)
CIE-LCH	lch(75.68, 81.29, 141.88°)
OKLab	oklab(76.91% -0.1726 0.1183)
OKLCH	oklch(76.91% 0.209 145.6)
XYZ	xyz(27.6270, 49.3636, 17.0871)
Luminance	0.4937 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40D557 #D540BE

analogous

#74D540 #40D557 #40D5A2

triadic

#40D557 #5740D5 #D55740

tetradic

#40D557 #4074D5 #D540BE #D5A240

square

#40D557 #4074D5 #D540BE #D5A240

split-complementary

#40D557 #A240D5 #D54074

monochromatic

#1C7F2B #27B13C #40D557 #72E083 #A4EBAF

Accessibility & contrast

On white

1.93

#40D557 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.87

#40D557 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40D557

10.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40D557	#FFFFFF	#000000	##000000
##40D557	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)

#D8C24A

Deuteranopia (green-blind)

#C7B661

Tritanopia (blue-blind)

#00D0BA

Achromatopsia (no color)

#BABABA

Design tokens & code

CSS

--color: #40d557;
/* rgb */ color: rgb(64, 213, 87);
/* oklch */ color: oklch(76.9% 0.209 145.6);

Tailwind

colors: {
  custom: {
    50: '#89e38a',
    500: '#40d557',
    950: '#000000',
  },
}

SCSS

$custom: #40d557;
$custom-light: #89e38a;
$custom-dark: #000000;

JSON

{
  "hex": "#40d557",
  "rgb": {
    "r": 64,
    "g": 213,
    "b": 87
  },
  "hsl": {
    "h": 129.262,
    "s": 63.948,
    "l": 54.314
  },
  "oklch": {
    "l": 0.76905,
    "c": 0.20931,
    "h": 145.6
  },
  "luminance": 0.49367
}

Semantic roles & 50–950 ramp

primary

#40D557

secondary

#D899CE

accent

#41CDE7

background

#F9FEF8

surface

#F1FCF0

border

#CBD5CB

text

#0D160C

muted

#7E847D

Preview Lab

Preview with #40D557

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

Preview Lab → · Contrast checker → · Palette generator →