#40C580#40C580

#40C580 is a light, vivid green. Relative luminance 0.426; OKLCH L 73.5% C 0.153 H 156.3°. Best body text is #000000 at 9.52:1 contrast (WCAG AA passes).

Color values

HEX	#40C580
RGB	rgb(64, 197, 128)
HSL	hsl(149, 53%, 51%)
HSV	hsv(149, 68%, 77%)
CMYK	cmyk(67.5%, 0%, 35%, 22.7%)
CIE-LAB	lab(71.27, -51.69, 24.40)
CIE-LCH	lch(71.27, 57.15, 154.73°)
OKLab	oklab(73.45% -0.1401 0.0614)
OKLCH	oklch(73.45% 0.153 156.3)
XYZ	xyz(25.9745, 42.5782, 27.2674)
Luminance	0.4258 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40C580 #C54085

analogous

#42C540 #40C580 #40C5C2

triadic

#40C580 #8040C5 #C58040

tetradic

#40C580 #4042C5 #C54085 #C5C240

square

#40C580 #4042C5 #C54085 #C5C240

split-complementary

#40C580 #C240C5 #C54042

monochromatic

#206A44 #2F9962 #40C580 #6FD39F #9EE2BE

Accessibility & contrast

On white

2.21

#40C580 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.52

#40C580 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40C580

9.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40C580	#FFFFFF	#000000	##000000
##40C580	1.00	2.21	9.52	9.52
#FFFFFF	2.21	1.00	21.00	21.00
#000000	9.52	21.00	1.00	1.00
##000000	9.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C4B67C

Deuteranopia (green-blind)

#B3AA84

Tritanopia (blue-blind)

#00C3B3

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #40c580;
/* rgb */ color: rgb(64, 197, 128);
/* oklch */ color: oklch(73.5% 0.153 156.3);

Tailwind

colors: {
  custom: {
    50: '#84d7a5',
    500: '#40c580',
    950: '#000000',
  },
}

SCSS

$custom: #40c580;
$custom-light: #84d7a5;
$custom-dark: #000000;

JSON

{
  "hex": "#40c580",
  "rgb": {
    "r": 64,
    "g": 197,
    "b": 128
  },
  "hsl": {
    "h": 148.872,
    "s": 53.414,
    "l": 51.176
  },
  "oklch": {
    "l": 0.7345,
    "c": 0.15292,
    "h": 156.3
  },
  "luminance": 0.42581
}

Semantic roles & 50–950 ramp

primary

#40C580

secondary

#CE93B2

accent

#4B97DD

background

#F8FDFA

surface

#F0FAF4

border

#CBD3CE

text

#0C140F

muted

#7D837F

Preview Lab

Preview with #40C580

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

Preview Lab → · Contrast checker → · Palette generator →