#42D578#42D578

#42D578 is a light, vivid green. Relative luminance 0.501; OKLCH L 77.4% C 0.180 H 151.5°. Best body text is #000000 at 11.02:1 contrast (WCAG AA passes).

Color values

HEX	#42D578
RGB	rgb(66, 213, 120)
HSL	hsl(142, 64%, 55%)
HSV	hsv(142, 69%, 84%)
CMYK	cmyk(69%, 0%, 43.7%, 16.5%)
CIE-LAB	lab(76.13, -58.86, 34.95)
CIE-LCH	lch(76.13, 68.45, 149.30°)
OKLab	oklab(77.43% -0.1586 0.0861)
OKLCH	oklch(77.43% 0.18 151.5)
XYZ	xyz(29.4287, 50.0996, 25.8849)
Luminance	0.5010 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42D578 #D5429F

analogous

#56D542 #42D578 #42D5C2

triadic

#42D578 #7842D5 #D57842

tetradic

#42D578 #4256D5 #D5429F #D5C242

square

#42D578 #4256D5 #D5429F #D5C242

split-complementary

#42D578 #C242D5 #D54256

monochromatic

#1C8041 #28B25B #42D578 #74E09C #A6EBC0

Accessibility & contrast

On white

1.91

#42D578 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.02

#42D578 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42D578

11.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42D578	#FFFFFF	#000000	##000000
##42D578	1.00	1.91	11.02	11.02
#FFFFFF	1.91	1.00	21.00	21.00
#000000	11.02	21.00	1.00	1.00
##000000	11.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D6C371

Deuteranopia (green-blind)

#C4B77E

Tritanopia (blue-blind)

#00D2BE

Achromatopsia (no color)

#BCBCBC

Design tokens & code

CSS

--color: #42d578;
/* rgb */ color: rgb(66, 213, 120);
/* oklch */ color: oklch(77.4% 0.180 151.5);

Tailwind

colors: {
  custom: {
    50: '#88e3a0',
    500: '#42d578',
    950: '#000000',
  },
}

SCSS

$custom: #42d578;
$custom-light: #88e3a0;
$custom-dark: #000000;

JSON

{
  "hex": "#42d578",
  "rgb": {
    "r": 66,
    "g": 213,
    "b": 120
  },
  "hsl": {
    "h": 142.041,
    "s": 63.636,
    "l": 54.706
  },
  "oklch": {
    "l": 0.77425,
    "c": 0.18046,
    "h": 151.5
  },
  "luminance": 0.50103
}

Semantic roles & 50–950 ramp

primary

#42D578

secondary

#873469

accent

#41AAE7

background

#FCFEFC

surface

#F4FCF5

border

#CED5CF

text

#0D160F

muted

#7F8480

Preview Lab

Preview with #42D578

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

Preview Lab → · Contrast checker → · Palette generator →