#42D559#42D559

#42D559 is a light, highly saturated green. Relative luminance 0.495; OKLCH L 77.0% C 0.207 H 145.7°. Best body text is #000000 at 10.89:1 contrast (WCAG AA passes).

Color values

HEX	#42D559
RGB	rgb(66, 213, 89)
HSL	hsl(129, 64%, 55%)
HSV	hsv(129, 69%, 84%)
CMYK	cmyk(69%, 0%, 58.2%, 16.5%)
CIE-LAB	lab(75.74, -63.36, 49.37)
CIE-LCH	lch(75.74, 80.33, 142.08°)
OKLab	oklab(76.98% -0.1711 0.1167)
OKLCH	oklch(76.98% 0.207 145.7)
XYZ	xyz(27.8423, 49.4650, 17.5296)
Luminance	0.4947 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42D559 #D542BE

analogous

#74D542 #42D559 #42D5A3

triadic

#42D559 #5942D5 #D55942

tetradic

#42D559 #4274D5 #D542BE #D5A342

square

#42D559 #4274D5 #D542BE #D5A342

split-complementary

#42D559 #A342D5 #D54274

monochromatic

#1C802C #28B23D #42D559 #74E085 #A6EBB1

Accessibility & contrast

On white

1.93

#42D559 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.89

#42D559 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42D559

10.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42D559	#FFFFFF	#000000	##000000
##42D559	1.00	1.93	10.89	10.89
#FFFFFF	1.93	1.00	21.00	21.00
#000000	10.89	21.00	1.00	1.00
##000000	10.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D8C24C

Deuteranopia (green-blind)

#C7B663

Tritanopia (blue-blind)

#00D0BA

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #42d559;
/* rgb */ color: rgb(66, 213, 89);
/* oklch */ color: oklch(77.0% 0.207 145.7);

Tailwind

colors: {
  custom: {
    50: '#89e38b',
    500: '#42d559',
    950: '#000000',
  },
}

SCSS

$custom: #42d559;
$custom-light: #89e38b;
$custom-dark: #000000;

JSON

{
  "hex": "#42d559",
  "rgb": {
    "r": 66,
    "g": 213,
    "b": 89
  },
  "hsl": {
    "h": 129.388,
    "s": 63.636,
    "l": 54.706
  },
  "oklch": {
    "l": 0.76975,
    "c": 0.20711,
    "h": 145.7
  },
  "luminance": 0.49468
}

Semantic roles & 50–950 ramp

primary

#42D559

secondary

#D89ACF

accent

#41CDE7

background

#F9FEF8

surface

#F1FCF0

border

#CBD5CB

text

#0D160C

muted

#7E847D

Preview Lab

Preview with #42D559

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

Preview Lab → · Contrast checker → · Palette generator →