#40D978#40D978

#40D978 is a light, vivid green. Relative luminance 0.521; OKLCH L 78.4% C 0.186 H 151.2°. Best body text is #000000 at 11.41:1 contrast (WCAG AA passes).

Color values

HEX	#40D978
RGB	rgb(64, 217, 120)
HSL	hsl(142, 67%, 55%)
HSV	hsv(142, 71%, 85%)
CMYK	cmyk(70.5%, 0%, 44.7%, 14.9%)
CIE-LAB	lab(77.32, -60.63, 36.47)
CIE-LCH	lch(77.32, 70.76, 148.97°)
OKLab	oklab(78.4% -0.1632 0.0896)
OKLCH	oklch(78.4% 0.186 151.2)
XYZ	xyz(30.3148, 52.0684, 26.2182)
Luminance	0.5207 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40D978 #D940A1

analogous

#54D940 #40D978 #40D9C5

triadic

#40D978 #7840D9 #D97840

tetradic

#40D978 #4054D9 #D940A1 #D9C540

square

#40D978 #4054D9 #D940A1 #D9C540

split-complementary

#40D978 #C540D9 #D94054

monochromatic

#1A8441 #24B75A #40D978 #73E39C #A6EDC0

Accessibility & contrast

On white

1.84

#40D978 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.41

#40D978 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40D978

11.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40D978	#FFFFFF	#000000	##000000
##40D978	1.00	1.84	11.41	11.41
#FFFFFF	1.84	1.00	21.00	21.00
#000000	11.41	21.00	1.00	1.00
##000000	11.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DAC771

Deuteranopia (green-blind)

#C7BA7F

Tritanopia (blue-blind)

#00D6C2

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #40d978;
/* rgb */ color: rgb(64, 217, 120);
/* oklch */ color: oklch(78.4% 0.186 151.2);

Tailwind

colors: {
  custom: {
    50: '#88e6a0',
    500: '#40d978',
    950: '#000000',
  },
}

SCSS

$custom: #40d978;
$custom-light: #88e6a0;
$custom-dark: #000000;

JSON

{
  "hex": "#40d978",
  "rgb": {
    "r": 64,
    "g": 217,
    "b": 120
  },
  "hsl": {
    "h": 141.961,
    "s": 66.812,
    "l": 55.098
  },
  "oklch": {
    "l": 0.78396,
    "c": 0.18623,
    "h": 151.2
  },
  "luminance": 0.52072
}

Semantic roles & 50–950 ramp

primary

#40D978

secondary

#8B326A

accent

#3EABEA

background

#FCFEFC

surface

#F4FCF5

border

#CED5CF

text

#0D160F

muted

#7F8480

Preview Lab

Preview with #40D978

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

Preview Lab → · Contrast checker → · Palette generator →