#40D888#40D888

#40D888 is a light, vivid green. Relative luminance 0.520; OKLCH L 78.4% C 0.171 H 155.5°. Best body text is #000000 at 11.40:1 contrast (WCAG AA passes).

Color values

HEX	#40D888
RGB	rgb(64, 216, 136)
HSL	hsl(148, 66%, 55%)
HSV	hsv(148, 70%, 85%)
CMYK	cmyk(70.4%, 0%, 37%, 15.3%)
CIE-LAB	lab(77.27, -57.42, 28.28)
CIE-LCH	lch(77.27, 64.01, 153.78°)
OKLab	oklab(78.43% -0.1552 0.0708)
OKLCH	oklch(78.43% 0.171 155.5)
XYZ	xyz(31.1113, 51.9758, 31.6805)
Luminance	0.5198 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40D888 #D84090

analogous

#44D840 #40D888 #40D8D4

triadic

#40D888 #8840D8 #D88840

tetradic

#40D888 #4044D8 #D84090 #D8D440

square

#40D888 #4044D8 #D84090 #D8D440

split-complementary

#40D888 #D440D8 #D84044

monochromatic

#1B834C #25B66A #40D888 #73E2A8 #A6EDC7

Accessibility & contrast

On white

1.84

#40D888 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.40

#40D888 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40D888

11.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40D888	#FFFFFF	#000000	##000000
##40D888	1.00	1.84	11.40	11.40
#FFFFFF	1.84	1.00	21.00	21.00
#000000	11.40	21.00	1.00	1.00
##000000	11.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D7C783

Deuteranopia (green-blind)

#C4B98D

Tritanopia (blue-blind)

#00D6C4

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #40d888;
/* rgb */ color: rgb(64, 216, 136);
/* oklch */ color: oklch(78.4% 0.171 155.5);

Tailwind

colors: {
  custom: {
    50: '#88e5ab',
    500: '#40d888',
    950: '#000000',
  },
}

SCSS

$custom: #40d888;
$custom-light: #88e5ab;
$custom-dark: #000000;

JSON

{
  "hex": "#40d888",
  "rgb": {
    "r": 64,
    "g": 216,
    "b": 136
  },
  "hsl": {
    "h": 148.421,
    "s": 66.087,
    "l": 54.902
  },
  "oklch": {
    "l": 0.78433,
    "c": 0.1706,
    "h": 155.5
  },
  "luminance": 0.51979
}

Semantic roles & 50–950 ramp

primary

#40D888

secondary

#8A3360

accent

#3F98E9

background

#FCFEFD

surface

#F4FCF7

border

#CED5D0

text

#0D1610

muted

#7F8481

Preview Lab

Preview with #40D888

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

Preview Lab → · Contrast checker → · Palette generator →