#42E540#42E540

#42E540 is a light, highly saturated green. Relative luminance 0.576; OKLCH L 80.9% C 0.242 H 142.8°. Best body text is #000000 at 12.51:1 contrast (WCAG AA passes).

Color values

HEX	#42E540
RGB	rgb(66, 229, 64)
HSL	hsl(119, 76%, 57%)
HSV	hsv(119, 72%, 90%)
CMYK	cmyk(71.2%, 0%, 72.1%, 10.2%)
CIE-LAB	lab(80.50, -71.06, 64.67)
CIE-LCH	lch(80.50, 96.08, 137.69°)
OKLab	oklab(80.85% -0.193 0.1466)
OKLCH	oklch(80.85% 0.242 142.8)
XYZ	xyz(31.1896, 57.5636, 14.3166)
Luminance	0.5757 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42E540 #E340E5

analogous

#94E540 #42E540 #40E591

triadic

#42E540 #4042E5 #E54042

tetradic

#42E540 #4094E5 #E340E5 #E59140

square

#42E540 #4094E5 #E340E5 #E59140

split-complementary

#42E540 #9140E5 #E54094

monochromatic

#169614 #1ECC1C #42E540 #77EC76 #ADF4AC

Accessibility & contrast

On white

1.68

#42E540 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.51

#42E540 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42E540

12.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42E540	#FFFFFF	#000000	##000000
##42E540	1.00	1.68	12.51	12.51
#FFFFFF	1.68	1.00	21.00	21.00
#000000	12.51	21.00	1.00	1.00
##000000	12.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EAD022

Deuteranopia (green-blind)

#D7C351

Tritanopia (blue-blind)

#00DEC5

Achromatopsia (no color)

#C8C8C8

Design tokens & code

CSS

--color: #42e540;
/* rgb */ color: rgb(66, 229, 64);
/* oklch */ color: oklch(80.9% 0.242 142.8);

Tailwind

colors: {
  custom: {
    50: '#8eef7e',
    500: '#42e540',
    950: '#000000',
  },
}

SCSS

$custom: #42e540;
$custom-light: #8eef7e;
$custom-dark: #000000;

JSON

{
  "hex": "#42e540",
  "rgb": {
    "r": 66,
    "g": 229,
    "b": 64
  },
  "hsl": {
    "h": 119.273,
    "s": 76.037,
    "l": 57.451
  },
  "oklch": {
    "l": 0.80851,
    "c": 0.24234,
    "h": 142.8
  },
  "luminance": 0.57567
}

Semantic roles & 50–950 ramp

primary

#42E540

secondary

#992F9A

accent

#35F3F0

background

#FCFFFB

surface

#F5FEF2

border

#CFD6CC

text

#0E170B

muted

#7F857E

Preview Lab

Preview with #42E540

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

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