#40C578#40C578

#40C578 is a light, vivid green. Relative luminance 0.424; OKLCH L 73.3% C 0.160 H 153.8°. Best body text is #000000 at 9.48:1 contrast (WCAG AA passes).

Color values

HEX	#40C578
RGB	rgb(64, 197, 120)
HSL	hsl(145, 53%, 51%)
HSV	hsv(145, 68%, 77%)
CMYK	cmyk(67.5%, 0%, 39.1%, 22.7%)
CIE-LAB	lab(71.13, -53.21, 28.41)
CIE-LCH	lch(71.13, 60.32, 151.90°)
OKLab	oklab(73.29% -0.1437 0.0708)
OKLCH	oklch(73.29% 0.16 153.8)
XYZ	xyz(25.4686, 42.3758, 24.6028)
Luminance	0.4238 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40C578 #C5408D

analogous

#4AC540 #40C578 #40C5BA

triadic

#40C578 #7840C5 #C57840

tetradic

#40C578 #404AC5 #C5408D #C5BA40

square

#40C578 #404AC5 #C5408D #C5BA40

split-complementary

#40C578 #BA40C5 #C5404A

monochromatic

#206A3F #2F995B #40C578 #6FD399 #9EE2BA

Accessibility & contrast

On white

2.22

#40C578 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.48

#40C578 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40C578

9.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40C578	#FFFFFF	#000000	##000000
##40C578	1.00	2.22	9.48	9.48
#FFFFFF	2.22	1.00	21.00	21.00
#000000	9.48	21.00	1.00	1.00
##000000	9.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C5B573

Deuteranopia (green-blind)

#B4A97D

Tritanopia (blue-blind)

#00C3B2

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #40c578;
/* rgb */ color: rgb(64, 197, 120);
/* oklch */ color: oklch(73.3% 0.160 153.8);

Tailwind

colors: {
  custom: {
    50: '#84d79f',
    500: '#40c578',
    950: '#000000',
  },
}

SCSS

$custom: #40c578;
$custom-light: #84d79f;
$custom-dark: #000000;

JSON

{
  "hex": "#40c578",
  "rgb": {
    "r": 64,
    "g": 197,
    "b": 120
  },
  "hsl": {
    "h": 145.263,
    "s": 53.414,
    "l": 51.176
  },
  "oklch": {
    "l": 0.73291,
    "c": 0.16022,
    "h": 153.8
  },
  "luminance": 0.42379
}

Semantic roles & 50–950 ramp

primary

#40C578

secondary

#CE93B5

accent

#4B9FDD

background

#F8FDF9

surface

#F0FAF2

border

#CBD3CC

text

#0C140E

muted

#7D837E

Preview Lab

Preview with #40C578

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

Preview Lab → · Contrast checker → · Palette generator →