#42D579#42D579

#42D579 is a light, vivid green. Relative luminance 0.501; OKLCH L 77.4% C 0.180 H 151.7°. Best body text is #000000 at 11.03:1 contrast (WCAG AA passes).

Color values

HEX	#42D579
RGB	rgb(66, 213, 121)
HSL	hsl(142, 64%, 55%)
HSV	hsv(142, 69%, 84%)
CMYK	cmyk(69%, 0%, 43.2%, 16.5%)
CIE-LAB	lab(76.15, -58.69, 34.46)
CIE-LCH	lch(76.15, 68.06, 149.58°)
OKLab	oklab(77.44% -0.1582 0.085)
OKLCH	oklch(77.44% 0.18 151.7)
XYZ	xyz(29.4897, 50.1240, 26.2062)
Luminance	0.5013 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42D579 #D5429E

analogous

#55D542 #42D579 #42D5C2

triadic

#42D579 #7942D5 #D57942

tetradic

#42D579 #4255D5 #D5429E #D5C242

square

#42D579 #4255D5 #D5429E #D5C242

split-complementary

#42D579 #C242D5 #D54255

monochromatic

#1C8042 #28B25B #42D579 #74E09D #A6EBC0

Accessibility & contrast

On white

1.90

#42D579 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.03

#42D579 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42D579

11.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42D579	#FFFFFF	#000000	##000000
##42D579	1.00	1.90	11.03	11.03
#FFFFFF	1.90	1.00	21.00	21.00
#000000	11.03	21.00	1.00	1.00
##000000	11.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D6C372

Deuteranopia (green-blind)

#C4B77F

Tritanopia (blue-blind)

#00D2BF

Achromatopsia (no color)

#BCBCBC

Design tokens & code

CSS

--color: #42d579;
/* rgb */ color: rgb(66, 213, 121);
/* oklch */ color: oklch(77.4% 0.180 151.7);

Tailwind

colors: {
  custom: {
    50: '#88e3a1',
    500: '#42d579',
    950: '#000000',
  },
}

SCSS

$custom: #42d579;
$custom-light: #88e3a1;
$custom-dark: #000000;

JSON

{
  "hex": "#42d579",
  "rgb": {
    "r": 66,
    "g": 213,
    "b": 121
  },
  "hsl": {
    "h": 142.449,
    "s": 63.636,
    "l": 54.706
  },
  "oklch": {
    "l": 0.77442,
    "c": 0.17956,
    "h": 151.7
  },
  "luminance": 0.50127
}

Semantic roles & 50–950 ramp

primary

#42D579

secondary

#873468

accent

#41A9E7

background

#FCFEFC

surface

#F4FCF5

border

#CED5CF

text

#0D160F

muted

#7F8480

Preview Lab

Preview with #42D579

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

Preview Lab → · Contrast checker → · Palette generator →