#42E240#42E240

#42E240 is a light, highly saturated green. Relative luminance 0.559; OKLCH L 80.1% C 0.239 H 142.8°. Best body text is #000000 at 12.18:1 contrast (WCAG AA passes).

Color values

HEX	#42E240
RGB	rgb(66, 226, 64)
HSL	hsl(119, 74%, 57%)
HSV	hsv(119, 72%, 89%)
CMYK	cmyk(70.8%, 0%, 71.7%, 11.4%)
CIE-LAB	lab(79.57, -70.11, 63.72)
CIE-LCH	lch(79.57, 94.74, 137.73°)
OKLab	oklab(80.08% -0.1904 0.1446)
OKLCH	oklch(80.08% 0.239 142.8)
XYZ	xyz(30.3667, 55.9178, 14.0423)
Luminance	0.5592 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42E240 #E040E2

analogous

#93E240 #42E240 #40E28F

triadic

#42E240 #4042E2 #E24042

tetradic

#42E240 #4093E2 #E040E2 #E28F40

square

#42E240 #4093E2 #E040E2 #E28F40

split-complementary

#42E240 #8F40E2 #E24093

monochromatic

#189216 #20C71E #42E240 #77EA75 #ABF2AA

Accessibility & contrast

On white

1.72

#42E240 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.18

#42E240 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42E240

12.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42E240	#FFFFFF	#000000	##000000
##42E240	1.00	1.72	12.18	12.18
#FFFFFF	1.72	1.00	21.00	21.00
#000000	12.18	21.00	1.00	1.00
##000000	12.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E7CD23

Deuteranopia (green-blind)

#D5C051

Tritanopia (blue-blind)

#03DBC2

Achromatopsia (no color)

#C5C5C5

Design tokens & code

CSS

--color: #42e240;
/* rgb */ color: rgb(66, 226, 64);
/* oklch */ color: oklch(80.1% 0.239 142.8);

Tailwind

colors: {
  custom: {
    50: '#8dec7e',
    500: '#42e240',
    950: '#000000',
  },
}

SCSS

$custom: #42e240;
$custom-light: #8dec7e;
$custom-dark: #000000;

JSON

{
  "hex": "#42e240",
  "rgb": {
    "r": 66,
    "g": 226,
    "b": 64
  },
  "hsl": {
    "h": 119.259,
    "s": 73.636,
    "l": 56.863
  },
  "oklch": {
    "l": 0.8008,
    "c": 0.23911,
    "h": 142.8
  },
  "luminance": 0.55921
}

Semantic roles & 50–950 ramp

primary

#42E240

secondary

#953096

accent

#38F0EE

background

#FCFFFB

surface

#F5FEF2

border

#CFD6CC

text

#0E160B

muted

#7F857E

Preview Lab

Preview with #42E240

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

Preview Lab → · Contrast checker → · Palette generator →