#40E399#40E399

#40E399 is a light, vivid teal. Relative luminance 0.583; OKLCH L 81.5% C 0.170 H 158.7°. Best body text is #000000 at 12.67:1 contrast (WCAG AA passes).

Color values

HEX	#40E399
RGB	rgb(64, 227, 153)
HSL	hsl(153, 74%, 57%)
HSV	hsv(153, 72%, 89%)
CMYK	cmyk(71.8%, 0%, 32.6%, 11%)
CIE-LAB	lab(80.92, -58.25, 24.43)
CIE-LCH	lch(80.92, 63.16, 157.25°)
OKLab	oklab(81.54% -0.1581 0.0617)
OKLCH	oklch(81.54% 0.17 158.7)
XYZ	xyz(35.3297, 58.3240, 39.5265)
Luminance	0.5833 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40E399 #E3408A

analogous

#40E348 #40E399 #40DBE3

triadic

#40E399 #9940E3 #E39940

tetradic

#40E399 #4840E3 #E3408A #DBE340

square

#40E399 #4840E3 #E3408A #DBE340

split-complementary

#40E399 #E340DB #E34840

monochromatic

#16935A #1DC87B #40E399 #75EBB6 #ABF3D2

Accessibility & contrast

On white

1.66

#40E399 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.67

#40E399 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40E399

12.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40E399	#FFFFFF	#000000	##000000
##40E399	1.00	1.66	12.67	12.67
#FFFFFF	1.66	1.00	21.00	21.00
#000000	12.67	21.00	1.00	1.00
##000000	12.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E1D294

Deuteranopia (green-blind)

#CDC39E

Tritanopia (blue-blind)

#00E2D0

Achromatopsia (no color)

#C9C9C9

Design tokens & code

CSS

--color: #40e399;
/* rgb */ color: rgb(64, 227, 153);
/* oklch */ color: oklch(81.5% 0.170 158.7);

Tailwind

colors: {
  custom: {
    50: '#8aedb7',
    500: '#40e399',
    950: '#000000',
  },
}

SCSS

$custom: #40e399;
$custom-light: #8aedb7;
$custom-dark: #000000;

JSON

{
  "hex": "#40e399",
  "rgb": {
    "r": 64,
    "g": 227,
    "b": 153
  },
  "hsl": {
    "h": 152.761,
    "s": 74.429,
    "l": 57.059
  },
  "oklch": {
    "l": 0.81539,
    "c": 0.16975,
    "h": 158.7
  },
  "luminance": 0.58328
}

Semantic roles & 50–950 ramp

primary

#40E399

secondary

#97305F

accent

#378BF1

background

#FCFFFD

surface

#F4FEF8

border

#CED6D1

text

#0D1611

muted

#7F8581

Preview Lab

Preview with #40E399

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

Preview Lab → · Contrast checker → · Palette generator →