#40D971#40D971

#40D971 is a light, vivid green. Relative luminance 0.519; OKLCH L 78.3% C 0.192 H 149.7°. Best body text is #000000 at 11.38:1 contrast (WCAG AA passes).

Color values

HEX	#40D971
RGB	rgb(64, 217, 113)
HSL	hsl(139, 67%, 55%)
HSV	hsv(139, 71%, 85%)
CMYK	cmyk(70.5%, 0%, 47.9%, 14.9%)
CIE-LAB	lab(77.22, -61.75, 39.81)
CIE-LCH	lch(77.22, 73.47, 147.19°)
OKLab	oklab(78.28% -0.1662 0.097)
OKLCH	oklch(78.28% 0.192 149.7)
XYZ	xyz(29.9054, 51.9046, 24.0621)
Luminance	0.5191 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40D971 #D940A8

analogous

#5BD940 #40D971 #40D9BE

triadic

#40D971 #7140D9 #D97140

tetradic

#40D971 #405BD9 #D940A8 #D9BE40

square

#40D971 #405BD9 #D940A8 #D9BE40

split-complementary

#40D971 #BE40D9 #D9405B

monochromatic

#1A843C #24B754 #40D971 #73E397 #A6EDBD

Accessibility & contrast

On white

1.85

#40D971 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.38

#40D971 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40D971

11.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40D971	#FFFFFF	#000000	##000000
##40D971	1.00	1.85	11.38	11.38
#FFFFFF	1.85	1.00	21.00	21.00
#000000	11.38	21.00	1.00	1.00
##000000	11.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DAC669

Deuteranopia (green-blind)

#C8BA78

Tritanopia (blue-blind)

#00D5C0

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #40d971;
/* rgb */ color: rgb(64, 217, 113);
/* oklch */ color: oklch(78.3% 0.192 149.7);

Tailwind

colors: {
  custom: {
    50: '#88e69b',
    500: '#40d971',
    950: '#000000',
  },
}

SCSS

$custom: #40d971;
$custom-light: #88e69b;
$custom-dark: #000000;

JSON

{
  "hex": "#40d971",
  "rgb": {
    "r": 64,
    "g": 217,
    "b": 113
  },
  "hsl": {
    "h": 139.216,
    "s": 66.812,
    "l": 55.098
  },
  "oklch": {
    "l": 0.78283,
    "c": 0.19245,
    "h": 149.7
  },
  "luminance": 0.51908
}

Semantic roles & 50–950 ramp

primary

#40D971

secondary

#8B326F

accent

#3EB3EA

background

#FCFEFC

surface

#F4FCF5

border

#CED5CF

text

#0D160E

muted

#7F847F

Preview Lab

Preview with #40D971

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

Preview Lab → · Contrast checker → · Palette generator →