#42D556#42D556

#42D556 is a light, highly saturated green. Relative luminance 0.494; OKLCH L 76.9% C 0.209 H 145.3°. Best body text is #000000 at 10.88:1 contrast (WCAG AA passes).

Color values

HEX	#42D556
RGB	rgb(66, 213, 86)
HSL	hsl(128, 64%, 55%)
HSV	hsv(128, 69%, 84%)
CMYK	cmyk(69%, 0%, 59.6%, 16.5%)
CIE-LAB	lab(75.71, -63.72, 50.68)
CIE-LCH	lch(75.71, 81.42, 141.50°)
OKLab	oklab(76.94% -0.1721 0.1193)
OKLCH	oklch(76.94% 0.209 145.3)
XYZ	xyz(27.7189, 49.4156, 16.8796)
Luminance	0.4942 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42D556 #D542C1

analogous

#78D542 #42D556 #42D59F

triadic

#42D556 #5642D5 #D55642

tetradic

#42D556 #4278D5 #D542C1 #D59F42

square

#42D556 #4278D5 #D542C1 #D59F42

split-complementary

#42D556 #9F42D5 #D54278

monochromatic

#1C802A #28B23A #42D556 #74E083 #A6EBB0

Accessibility & contrast

On white

1.93

#42D556 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.88

#42D556 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42D556

10.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42D556	#FFFFFF	#000000	##000000
##42D556	1.00	1.93	10.88	10.88
#FFFFFF	1.93	1.00	21.00	21.00
#000000	10.88	21.00	1.00	1.00
##000000	10.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D8C248

Deuteranopia (green-blind)

#C7B660

Tritanopia (blue-blind)

#02D0BA

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #42d556;
/* rgb */ color: rgb(66, 213, 86);
/* oklch */ color: oklch(76.9% 0.209 145.3);

Tailwind

colors: {
  custom: {
    50: '#89e38a',
    500: '#42d556',
    950: '#000000',
  },
}

SCSS

$custom: #42d556;
$custom-light: #89e38a;
$custom-dark: #000000;

JSON

{
  "hex": "#42d556",
  "rgb": {
    "r": 66,
    "g": 213,
    "b": 86
  },
  "hsl": {
    "h": 128.163,
    "s": 63.636,
    "l": 54.706
  },
  "oklch": {
    "l": 0.7694,
    "c": 0.20946,
    "h": 145.3
  },
  "luminance": 0.49419
}

Semantic roles & 50–950 ramp

primary

#42D556

secondary

#D89AD0

accent

#41D0E7

background

#F9FEF8

surface

#F1FCF0

border

#CBD5CB

text

#0D160C

muted

#7E847D

Preview Lab

Preview with #42D556

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

Preview Lab → · Contrast checker → · Palette generator →