#40D988#40D988

#40D988 is a light, vivid green. Relative luminance 0.525; OKLCH L 78.7% C 0.172 H 155.3°. Best body text is #000000 at 11.50:1 contrast (WCAG AA passes).

Color values

HEX	#40D988
RGB	rgb(64, 217, 136)
HSL	hsl(148, 67%, 55%)
HSV	hsv(148, 71%, 85%)
CMYK	cmyk(70.5%, 0%, 37.3%, 14.9%)
CIE-LAB	lab(77.57, -57.80, 28.69)
CIE-LCH	lch(77.57, 64.53, 153.61°)
OKLab	oklab(78.69% -0.1562 0.0718)
OKLCH	oklch(78.69% 0.172 155.3)
XYZ	xyz(31.3682, 52.4897, 31.7661)
Luminance	0.5249 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40D988 #D94091

analogous

#45D940 #40D988 #40D9D4

triadic

#40D988 #8840D9 #D98840

tetradic

#40D988 #4045D9 #D94091 #D9D440

square

#40D988 #4045D9 #D94091 #D9D440

split-complementary

#40D988 #D440D9 #D94045

monochromatic

#1A844C #24B76A #40D988 #73E3A8 #A6EDC8

Accessibility & contrast

On white

1.83

#40D988 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.50

#40D988 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40D988

11.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40D988	#FFFFFF	#000000	##000000
##40D988	1.00	1.83	11.50	11.50
#FFFFFF	1.83	1.00	21.00	21.00
#000000	11.50	21.00	1.00	1.00
##000000	11.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D8C883

Deuteranopia (green-blind)

#C5BA8D

Tritanopia (blue-blind)

#00D7C4

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #40d988;
/* rgb */ color: rgb(64, 217, 136);
/* oklch */ color: oklch(78.7% 0.172 155.3);

Tailwind

colors: {
  custom: {
    50: '#88e6ab',
    500: '#40d988',
    950: '#000000',
  },
}

SCSS

$custom: #40d988;
$custom-light: #88e6ab;
$custom-dark: #000000;

JSON

{
  "hex": "#40d988",
  "rgb": {
    "r": 64,
    "g": 217,
    "b": 136
  },
  "hsl": {
    "h": 148.235,
    "s": 66.812,
    "l": 55.098
  },
  "oklch": {
    "l": 0.78686,
    "c": 0.17189,
    "h": 155.3
  },
  "luminance": 0.52493
}

Semantic roles & 50–950 ramp

primary

#40D988

secondary

#8B3261

accent

#3E99EA

background

#FCFEFD

surface

#F4FCF7

border

#CED5D0

text

#0D1610

muted

#7F8481

Preview Lab

Preview with #40D988

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

Preview Lab → · Contrast checker → · Palette generator →